Audio Cables, 38 page

Mame To Male/Female XLR Cable Aux Line for Speaker/Microphone/Amplifier/Mixing Console/Sound Card

1M 1To2 Type-C To Dual 6.35Mm Male Ts Audio Cable Usb-C To 1/4 Inch Audio Cord Y Splitter Male For Phone Laptop Tablet Pc

30Cm Audio Signal Cable 2 Rca To Xh2.54Mm-3Pin Audio Input Socket Extended Sound Signal Interface For Amplifier Panel

Plug White Portable AUX Audio USB 2.0 Headphone 3.5mm Car MP3 Cord Cable for Ipod Shuffle Adapter

BOSS BCC-20-TRA TRS Cable, 6m Long, L-Shaped To Straight Plug, Shielded, for Instruments, Footswitches, Expression Pedals, Katana Amplifiers, and Cube

Y Splitter Cable Audio Aux Adapter 3.5mm To RCA Audio Conversion Cable Speaker

3.5mm MMCX Headphones Cable Detachable MMCX Audio Cable DIY Earphone Cable Replacement Smart Phone

3.5mm Earphone Cable Replacement Detachable MMCX Audio Cable for SE215/SE315/SE535/SE846

Super Speed New Headphone USB 2.0 3.5mm Audio AUX Charge Adapter Cable Cord for Ipod Shuffle

UCINNOVATE OFC Speaker 12AWG Audiophile HiFi Speaker Cable with Banana Plugs for Home Theater Surround 4m Heavy-Duty Bi-Wire High-End Cable,

CANARE 4S6 Speaker Cable with Banana Set of 1m Plugs, 2,

OFC Speaker Cable 50m F-Factory BK/C-102

BOAACOUSTIC German Speaker Cable with Banana Plugs and Compatible with Home and More Copper 3m 2 Cables Hi-Fi Y-Lug Terminals, Amplifiers, Subwoofers,

Monster Speaker 14 1 Cable, Gauge, Roll, 30.48m (100ft) ME-S14-30M

LCYOUTH Speaker 13 Pure 600 Cores Cable, Gauge, High-Purity OFC, Oxygen-Free Copper, (30M)

Male To Male MIDI Cable Copper Audio Extension Cord Black MIDI Extension Cable MIDI Keyboard

SHANLING EL100 Headphone Cable with IEM Silver Plated Earphone Upgrade SPC Monitor Microphone, Cable, 14-Core Cord, 1.3m In-Ear (2-Pin, Type-C)

Durable RCA Male For PSP 2000 3000 Tranfer 3 RCA AV Cable Cable Cord Audio Cables

XLR Adapter 3 Pin Signal Cable PVC 3Pin XLR Cable XLR Connector Cable Microphone Supplies

XLR Adapter 3 Pin Signal Cable PVC 3Pin XLR Cable XLR Connector Cable Microphone Supplies

Canon Plug XLR Connector Cable XLR Adapter 3Pin XLR Cable 3 Pin Signal Cable Microphone Supplies

KEYSION 3-in-1 2.5 3.5 4.4mm Replaceable Silver Plated OCC Upgrade Cable 0.78mm 2Pin Wire Earphones Cable HIFI Headphone Cable

Practical USB Remote IR Repeater Transmitter Extender Infrared Adapter Adapter

Camera Accessories Spring 3.5mm Cable Microphone To Camera Coiled Microphone Cable TRS To TRS Cable

Female Jack Audio Adapter Cord Headset Splitter Cable 3.5mm Splitter Cable Stereo Splitter Wire

Headphone Micphone Stereo 3.5 Mm Earphone Audio Cable Cable Cord Adapter Digital Cables Y Splitter

3.5mm Black Coiled Spring Right Angle Wire Line Aux Cord Audio Cable

Black For PSP 2000 3000 Slim To TV Tranfer Audio Cables 3 RCA AV Cable Cable Cord

Cable 3.5mm Male Male To Male Cable 2.5mm To 3.5mm Cable Headphone Cord With Mic Volume Control

Detachable Earphone Cable Replacement Upgrade MMCX Audio Cable MMCX Headphones Cable Notebook

Detachable Earphone Cable Replacement 3.5mm MMCX Audio Cable SE215/SE315/SE535/SE846/UE900

Stereo 3.5Mm Male To 3Pin Canon Male Plug Cable Audio Cord Adapter 30Cm Elbow

1m Amplifier USB C Audio Line Audio Cable Type C To 2 RCA Converter Aux Cord

Jack 3.5Mm Aux Audio Cable To Xh2.54 3P Terminal Male To Male Female 3 Core Stereo Audio Cable Amplifier Extended Line

1m 7AIY Mp4 Mini Player 3.5mm Jack Mobile Speaker Cable 3.5mm To 2 RCA Audio Line Stereo

Upgrade MMCX Headphones Cable Detachable MMCX Audio Cable SE215/SE315/SE535/SE846/UE900

Upgrade MMCX Headphones Cable 3.5mm MMCX Audio Cable DIY Earphone Cable Replacement MP3 MP4

High Quality Car Mp3 Audio Rca 1 Male To 2 Female Y Splitter Cable Adapter Cord Converter Car Aux Amplifier Car Speaker Adapter

Yushuo Mini Trapezoidal USB Cable, Old-Style T-Port MP3 Car Recorder Charging Connection.

3.5mm Male To Female Gold-Plated AUX Cable Connection Cable Audio Extension Cable Headphone Cord

1pc MIC 3 Pin XLR Male Plug To 1/4 Inch 6.35mm Mono Female Jack Audio Cable

1pc MIC 3 Pin XLR Male Plug To 1/4 Inch 6.35mm Mono Female Jack Audio Cable

1pc MIC 3 Pin XLR Male Plug To 1/4 Inch 6.35mm Mono Female Jack Audio Cable

Recepteur Audio - Transmetteur Audio Hama - 00305023 - Audio-Kabel 1,5 M TOSLINK Schwarz ()

Rallonge Pour Casque Micro Goobay - Mini Jack 4 Pôles (M) Vers Mini Jack 4 Pôles (F) - 3 M - Noir

To 2 Jack 3.5mm Male Headphone Jack Cable Adapter Y Splitter Cable AUX Cable Cable Converter

Ugreen - Câble Audio UGREEN 3,

Câble Pour Casque Micro - EPOS - CCEL 193-2 - EasyDisconnect - Noir - Jack Mini Mâle

NEDIS Subwoofer-Kabel - Cinch-Stecker an 2X Cinch-Stecker - 3,0 M - Stahlgrau Verstärkt

Câble Audio Stereo Mini Jack (M) Pour Stereo Mini Jack (M) 3 M - Goobay - Noir - Blindé

Headphone 1 Female To 2 Male Micphone Adapter Y Splitter 3.5 Mm Audio Cable

Volume Control Nylon Braid Headphone Cord With Mic Aux Cable Car Aux Cord Audio Cable Audio Wire

Cord Speaker Line With Mic 3.5mm To Jack 3.5mm Audio Cable Aux Cable Car Aux Cord Audio Wire

SPDIF MD OD 2.2 DVD Digital Optical Audio Cable Audio Wire Digital Audio Cable Audio Fiber Cable

Connected Cord Earphone Micphone Y Splitter Adapter Audio Cable 3.5 Mm

Speaker Line Headphone Cord With Mic Gold-plated Plug Audio Cable Car Aux Cord Aux Cable Audio Wire

Plug Headphone Cord Speaker Line With Mic Nylon Braid Car Aux Cord Aux Cable Audio Wire Audio Cable

Ugreen 1m High-Quality Stereo Audio Cable 3.5mm To Dual RCA Connectors, Black

Baseus Stereo Audio Cable Adapter AUX 3.5mm Mini Jack - USB Type C for Phone Tablet 120cm Black (CAM01-01)

Type C To 3.5mm Audio Cable for Headphones, Computers, Cars, Microphones, Phones, and Live Broadcasts

Accessories Audio Controller Headset Line DIY Earphone Wire Earphone Repair Cable Audio Cable

USB C Converter Jack Heaphone Speaker USB Type C To 3.5mm AUX Wire Adapter Cord Audio Cable

USB C Converter Jack Heaphone Car Adapter Cord AUX Wire Audio Cable USB Type C To 3.5mm

Jack Mic Audio Cable Headset To 2 Jack Cable Adapter Cable Converter AUX Cable Y Splitter Cable

Smart Phone Speaker Car Audio Cable USB Type C To 3.5mm AUX Wire Adapter Cord

Smart Phone Heaphone Car Adapter Cord USB Type C To 3.5mm Audio Cable AUX Wire

Tablet Heaphone Speaker USB Type C To 3.5mm AUX Wire Audio Cable Adapter Cord

Tablet Speaker Car Adapter Cord AUX Wire USB Type C To 3.5mm Audio Cable

USB C Converter Jack Heaphone Speaker USB Type C To 3.5mm AUX Wire Adapter Cord Audio Cable

USB C Converter Jack Heaphone Car Audio Cable Adapter Cord AUX Wire USB Type C To 3.5mm

Tablet Car Heaphone AUX Wire USB Type C To 3.5mm Audio Cable Adapter Cord

PLANETWA AMSG-10 Câble Jack / Jack US Neutrik - 3m

OEHLBACH - 20538

Câble Audio Haut-Parleur - Bobine 25.0m - Rouge/Noir - AWG 18

HAMA - Câble Jack 3,5 2 Rca Mm Longeur 2 M

Tablet Heaphone Speaker Adapter Cord AUX Wire USB Type C To 3.5mm Audio Cable

Tablet Heaphone Speaker Audio Cable USB Type C To 3.5mm Adapter Cord AUX Wire

USB C Converter Jack Heaphone Car Audio Cable USB Type C To 3.5mm Adapter Cord AUX Wire

Tablet Car Speaker Audio Cable AUX Wire USB Type C To 3.5mm Adapter Cord

USB C Converter Jack Heaphone Car USB Type C To 3.5mm AUX Wire Audio Cable Adapter Cord

Smart Phone Speaker Heaphone USB Type C To 3.5mm AUX Wire Audio Cable Adapter Cord

Smart Phone Heaphone Speaker AUX Wire Audio Cable Adapter Cord USB Type C To 3.5mm

Tablet Heaphone Speaker Audio Cable USB Type C To 3.5mm AUX Wire Adapter Cord

Tablet Car Heaphone USB Type C To 3.5mm Adapter Cord AUX Wire Audio Cable

Tablet Car Speaker Adapter Cord USB Type C To 3.5mm Audio Cable AUX Wire

Smart Phone Speaker Car Audio Cable Adapter Cord USB Type C To 3.5mm AUX Wire

Smart Phone Car Heaphone USB Type C To 3.5mm Adapter Cord Audio Cable AUX Wire

Tablet Heaphone Car Audio Cable AUX Wire Adapter Cord USB Type C To 3.5mm

Smart Phone Car Speaker USB Type C To 3.5mm Adapter Cord Audio Cable AUX Wire

USB C Converter Jack Heaphone Car Adapter Cord AUX Wire Audio Cable USB Type C To 3.5mm

Tablet Heaphone Car Audio Cable Adapter Cord USB Type C To 3.5mm AUX Wire

Tablet Car Heaphone Adapter Cord AUX Wire USB Type C To 3.5mm Audio Cable

Tablet Speaker Car AUX Wire Adapter Cord Audio Cable USB Type C To 3.5mm

Smart Phone Heaphone Speaker AUX Wire Adapter Cord USB Type C To 3.5mm Audio Cable

3-meter Long Connecting Cable, Guitar Bass Noise Cancelling Cable, Audio Connecting Cable

3.5mm Female 3.5mm Male Headphone Jack Cable Converter AUX Cable Y Splitter Cable Cable Adapter

Stable Connection MIDI DIN Plug Cable 5 Pin Sound Card Audio Line KTV

Stable Connection Electric Piano Extension Cable 5 Pin Sound Card Audio Line KTV

3.5mm Male To Male Type-C Audio Aux Cable for Car, Mobile, Computer, Speaker, Headphones

DVD TV Speaker 3.5mm Jack Headphone RCA Male 3.5 To 2RCA Splitter Audio Cable RCA Cable

Audio Cable 3.5mm Microphone Separator Audio Converter Headset Adapter Cord Audio Splitter Cable

3.3Ft 3.5Mm Aux Audio Plug Jack To Usb 2.0 Male Charge Cable Cord For Mp3

2.5Mm 4 Button 2 In 1 Electrode Lead Wires Connecting Cables For Therapy Machine

Headset Buddy 3.5 Mm Smartphone Headset To Rj9 Convert 3.5 Mm Smartphone Plug

Replacement Earphone Cable For Beats Mixr/Solo Hd Headphones With Remote Control Talk And Volume +/- Male-Male Audio Wire T84D

Esp8266 Esp32 Male Pigtail Cable 3Dbi Wifi 2.4G Aerial Antenna Sma-Ky Male Wireless Router 17Cm Pci U.Fl Ipx To Sma-Ky

Câble Audio - CORDIAL - Câble Y Jack 3.5 ST - 2 X Jack Mono Gold - 1.5m FairLine

Câble RCA - UGREEN - 2M - 2 RCA Mâle - Connecteur Audio/vidéo - Compatible Avec Plusieurs Appareils

INLINE - Câble Jack PREMIUM, 3,5mm Mâle/mâle, 10m

Câble Audio Toslink Mâle/mâle 15m - INLINE - Fibre Optique - Noir

JACK MALE 3.5MM MONO NICKELE

Câble Audio - UGREEN - 10547 - 3,5mm Mâle - 2 X RCA Femelle - Plaqué or - Noir

Ugreen 10584, 2 X RCA, Mâle, 3,5mm, Mâle, 2 M, Noir

Câble Audio RCA X 2 (M) Pour Mini Jack Stéréo (F) 5 M - INLINE - Blindé - Noir

Ugreen 10591, 2 X RCA, Mâle, 3,5mm, Mâle, 5 M, Noir

Bobine Câble Audio, Haut-Parleur, 2x0.5mm², 10.0m

UGREEN Câble Microphone Câble XLR Audio Mâle Vers Femelle Pour Enceinte Caméra Alimentation Fantôme Table De Mixage Amplificateur 1M

Crochet Commutateur Électronique - Jabra - Link 14201-36 - Noir - Filaire - Téléphone Mains Libres

Câble Audio RCA X 2 (M) Pour Mini Stéréo-téléphone 3,5 Mm (M) 3 M - INLINE - Noir - Blindé

Adaptateur Audio Pour Avion - INLINE - Slim - 1 M - Jack Mini Mono (M) Vers Stéréo (F) - Noir

Câble Fibre Optique PHILIPS SWA2302W - 1,5m - Transfert Fiable Des Signaux - Noir

Câble BNC 75 Ohm - 5m - CABLES TO GO

Adam Hall Câble DMX Femelle 3b - DMX Mâle 3b 6m Câble Dmx

Câble Audio M01 De Type C Mâle Vers 3,5 Mâle Noir -CAM01-01

LINDY Câble TosLink / SPDIF - 10m

Pioneer RCA Cable 3m Male To Male Carrozzeria CD-032

Monoprice Premium 2 RCA RCA Plug 22AWG Cable Black 1.5ft Plug/2 M/M - [Used]

10m Audio Extension Plug X 2 To Jack X 2 F-FACTORY VM-4011 Cable, RCA/Pin (Male) RCA/Pin (Female)

MOGAMI 2534 Y Cable Mini RCA X 1m (Stereo 2)

EMK RCA Converter To 2 RCA Mono TS Stereo Audio Red and White Splitter Adapter Cable for AV Home Theater 6.35mm Cable, 2x6.35mm (Male) (Male) Cable,

OFC Stereo Mini Plug To RCA Red and White Audio Cable MST-10 3.5mm (10m)

Hosa 91cm Stereo Mini To 2 RCA Audio Cable HMR-003Y

LCYOUTH 2RCA Male To 2RCA Male RCA Audio 24k Pure Copper Nylon HiFi Sound Compatible with CD AV Game Cable, Stereo, Gold-Plated Connectors, Braided,

KK CABLE RCA Audio RCA Stereo Male Plug To Dual RCA Stereo Male 4N OFC FA-K Cable, Plug, Cable, FA-K

RAWAUX RCA Splitter RCA 1 Male To 2 Male Audio Cable with 24K Mono To Red and White Coaxial Stereo for and Home Theater Cable, 2M, Y-Type Gold-Plated

Impeto Coaxial Cable To RCA Audio Cable Stereo Cable Digital Audio 1M "Male Male"

RAWAUX RCA To Converter Audio 90 Degree TRS Plug To 2 RCA Stereo Right Angle AUX To Phono Red and White 24K Gold Plated AUX Adapter Cable for Mobile

UGREEN RCA 1M Audio Stereo Audio 2RCA To 2RCA HiFi Sound 24K Connectors Cable, Cable, Cable, (Red/White) Conversion, Quality, Gold-Plated

Fuji Parts Audio Stereo Mini Plug To Cable, 2-Pin, 7m, FVC-323D

EXFORM Studio Twin Cable OFC BLACK RCA-RCA Plugs, Japanese-Made Cable, (1.8m)

Hosa Mono Phone Plug To RCA Audio Cable HPR-005 1.5m

FosPower 2RCA To 2RCA Stereo Audio Cable Connectors Copper (7.5m) (Red/White) (Male-Male) [24K Gold-Plated Core]

Cubilux USB C To RCA Stereo Audio Type C To RCA Output AUX Compatible with iPhone Pro iPad Pro iPad Air Samsung Pixel 3M Cable, Cord, 16/15 Max,

SANWA SUPPLY Audio Cable, 10.0m, Black, KM-A4-100K2

VANAUX RCA To Converter Stereo Mini Red and Cable for MP3 Home and More Gray 3.5mm Cable, Plug, White, Y-Shaped Smartphones, Players, Speakers,

SOUNDFAM RCA To Dual RCA To Dual TS Stereo Audio Interconnect Cable Nylon Dual To Dual Patch Cable for Gray 1/4 Cable, 1/4-inch [Gold-Plated, Braided]

SKW Stereo Mini Plug To 2 RCA Converter Stereo Audio Cable Length 3.5mm (Red/White) / 1.5m

MOGAMI 2534 RCA Red and White Line Cable 2-Pair 0.3m

EMK RCA To Converter To 2 RCA Stereo Mini Plug Converter RCA Stereo Audio Cable with Durable Nylon Braid for MP3 Home and HDTVs Blue 3.5mm Cable,

JSADZKJ JSADZJK 2 RCA Adapter 2 RCA Male To 2 RCA Female Stereo Audio Dual RCA Connector Jack Plug Extension Video Audio Subwoofer Auxiliary Audio

10M RCA Conversion Double AUX Male To 2RCA Stereo Audio Cable with Compatible with Mini Component Android Car and More 3.5mm Cable, Shielded, Male,

Fuji Parts AV Pin Plug To RCA X 3 To Mini Plug Cable, 4-Pole (L-Shaped), 5m, FVC-129C

20M RCA Quality Subwoofer Red and White Coaxial Digital Audio 20 2RCA To 2RCA Analog Stereo Audio Compatible with and Home Theaters Cable, Hi-Fi Cord,

FURUTECH ADL Speaker Blister Cable, Pack, 30m, FS303-30

SOUNDFAM 90 Degree To 2RCA Audio RCA To for Smart MP3 and Speakers Gray 3.5mm Cable, 3.5mm Conversion, Phones, Players, Tablets, - (1M)

Fuji Parts Audio To Cable, 2-Pin 2-Pin, 20m, FVC-321F

SOUNDFAM RCA Audio Stereo Subwoofer Cable Male To 2 1 for Home and Car Audio (2 Male, Meter) - Gray, Red/White, Theater, HDTV, Amplifiers, Hi-Fi

UGREEN RCA To Audio Converter Stereo Mini Plug To RCA Mini Red and White Compatible with Mini Component AV Android Car AUX and 5m 3.5mm Cable, 3.5mm

UGREEN To 2RCA Audio Stereo Mini Plug Male To 2RCA Durable Compatible with and 2M 3.5mm Cable, 3.5mm Male, Construction, Smartphones, PCs, TVs, Cars,

Hama Germany Audio Mm Jack Plug To 2 RCA M Cable, 3.5 Plugs, Stereo, Gold-Plated, 1.5

Amazon Basic RCA Audio RCA Male To 2 RCA Black Cable, 4.6m (2 Male),

Type-C AUX Cable Type-C To 3.5mm Audio Cable Type-C Car Digital Audio Cable

Aux DVD Headphone RCA Male Speaker 3.5mm Jack 3.5 To 2RCA RCA Cable Splitter Audio Cable

Resistant Braided Repair Tool Twisted Wire Speaker Lead Wire Speaker Copper Wire Woofer Lead Wire

Fibre Gold Plated Audio Wire Digital Audio Cable Digital Optical Audio Cable Audio Fiber Cable

Speaker Line With Mic Nylon Braid Gold-plated Plug Car Aux Cord Audio Cable Aux Cable Audio Wire

Wire 3.5MM Female To 2 Male PC Adapter Y-Splitter Headset Headphone Audio Cable 3.5mm Jack

FURUTECH ADL Headphone Cable, 3.5mm Stereo Mini Jack To L-Shaped, 1.3m, 1 Cable, IHP35B1.3

FURUTECH ADL Audio Grade Power Cable 1.5m G314AG15PLUS

FURUTECH ADL Speaker Cable, Blister Pack, 30m, FS303-30

Furutech GT2 USB-B High-End Audio-Grade USB Cable (1.2m) with Male A-Type Connector and Male B-Type Connector

Genuine Japanese AUDIO MINOR Replacement Upgrade Cable for AKG K702/Q701/K271/K240/K181, 5.5m Pure Copper Wire

Cables Série 3 Star - Adaptateur DMX XLR 5 Points

Adam Hall Cables Série 3 Star - Adaptateur DMX XLR

3.5mm Jack Audio Cable Aux Cable Male To Male Earphone Line Cord For Sony WH-1000XM5 XM4 XM3/WH-H900N H800 ATH-MSR7 Headphone

Speaker Wire Headphone Extension Cord Car AUX Cable 4 Pole 3.5mm Audio Cable Audio Adapter Cord

Headphone Extension Cord Speaker Wire 3.5mm Audio Cable Car AUX Cable Audio Adapter Cord 4 Pole

Male To Female XLR Audio Signal Cable for Mixer Microphone Balanced Cable

Digital Coaxial Audio Video Cable 3.5mm Jack RCA To RCA Stereo SPDIF Coaxial Connector Cable for Xiaomi Mi 12 HDTV Soundbar

VENTION 2m RCA Male Coaxial Digital Cable, Coaxial Hi-Fi, TPE Cotton Braid

For Old Iron Headband Spring Headphone Audio Cable Replacement Cable 2.5mm Interface

For Old Iron Headband Spring Headphone Audio Cable Replacement Cable 2.5mm Interface

For Old Iron Headband Spring Headphone Audio Cable Replacement Cable 2.5mm Interface

1M 3.5mm Male To Female Audio Extension Cable for Computers MP3 Earphone

Universal 3.5mm OMTP To CTIA Adapter Cable Male To Female Aux To Aux 3.5mm Connector

Type C To 3.5mm Audio Aux Jack Adapter Cable for Huawei Xiaomi

3.5mm Male To 2 Female Audio Extension Cord Earphone Audio Splitter Cable,Length: 30cm

20 Pieces Turntable Phono Headshell Wires

Stereo 6.35mm Extension Audio Cable 1 Male To 2 Female Headphone Headset Splitter 20cm

3.0M 3.5 Mm Male To Male 4-Conductor Auxiliary Stereo Aux Cable

4-Pin DIN To 5.5 X 2.5mm Female DC Power Cable

3m Mini DIN 6 Pin Cable Male To Female Straight Head Copper Core Extension Cord

3m DIN 8 Pin Male To Female S Video Cable Angled Connector Audio Video Cord for Set Top Box

3m S-Video Cable Mini DIN 8 Pin Male To Female Cord for Set Top Box Computer TV Monitor

2m Aux Wire 3.5mm Jack Aux Cable 3.5mm Male To Male Gaming Headset Audio Connection Line for HyperX Cloud Mix Alpha Headphone

1m Gold Plated 6.35mm Audio Cable Nylon Braided 6.35mm Male To Male Mono Instrument Cable 1/4" TS Cable with Zinc Alloy Housing

1m Audio Connection Cable 3.5mm AUX Coaxial Male To RCA Male Gold-Plated Connector Cord for TV Speaker Sound Amplifier

1.5m Coaxial 3.5mm AUX To RCA Cable Adapter Braided RCA Audio Line for TCL Xiaomi Mi TV 1/2 Speaker

2m TV Speaker Audio Cable 3.5mm AUX To RCA Adapter Cord Braided Gold-plated RCA Audio Line for TCL Mi TV

3m Super Long 3.5mm AUX To RCA Cable Adapter Braided Design RCA Audio Pure Copper Wire for Laptop,Television,Sound Amplifier