Product Details

GoHawk TJ4-W 4 in. Waterproof Bluetooth Motorcycle Speakers and Amplifier System (Black)


Waterproof External Amplifier. Bluetooth, USB, AUX, FM Radio, Full Function Control.

MP117 In stock ,




1. Speaker size is 4″ W x 5″ L. Please make sure you have enough room and clearance to install BEFORE purchase.

2. Mounting clamp supports 1 to 1-1/4 bar size.

3. Only the amplifier and speakers are water-resistant. Keep all USB, AUX, Wired Control, RCA input cables away from water.


  • The First Waterproof Compact Amplifier Designed by GoHawk. Performance 2 Channel 100W Amplifier with Two 4” Full Range Motorcycle Stereo Speakers. Swivel-able Handlebar Clamps Universal fit for 1 to 1.25″ Bar Size. Support Bluetooth Wireless connection up to 15 meters.
  • Support USB Drive as Music Playback. (Charging not support). 3.5mm Audio Jack AUX-IN Available. FM Radio Ready. Low-Profile FM Antenna Wire. Full Function Wired Control. 70″ Long Speaker Cable with Standard RCA Male Connector(Can be extended, Search for RCA Extension, Sold Separately).
  • Matte Black Stereo Unit with Blue Waterproof Gasket. Built with High-Quality Aluminum Material. Perfect for Harley Motorcycle ATV UTV RZR 4 Wheeler Polaris. 4″ Glossy Black Speaker Housing with Full Range Speaker Core. Built with High-Quality ABS Material.
  • Bluetooth 5.0: Wireless Stream your favorite music and radio channel from your smartphone. Compatible with iPhone 4 / 5 / 6 / 7 / 8 / X / Xs / 11 / 12 Max, iPod, iPad, Samsung Android Galaxy S Note Series and any smartphone devices.
  • Advanced IP56 Water-Resistant Design (Amp & Speaker). Superb Crystal Sound Quality. Great for outdoor use. Easy Installation: Comes with all necessary hardware and wiring. Included 78″ Long SAE to Ring Terminal Power Cable. Plug and Play. Standard 12V Power Connection.

Amplifier Specifications:
Input Voltage: DC 12 V
Input Sensitivity: 100MV-3000MV
Rated Power: 2*15W @ 4Ω
Peak Power: 100W
Channel: 2.0
Wireless transmission range > 15m
Response Frequency: 20Hz-20KHz
S/N: >80dB
Bluetooth 5.0
Built-in FM Radio
Support USB Drive as Music Playback
USB Charging: No
3.5mm AUX Audio Jack
Aluminum Housing
Full Function Wired Remote
Dimension: 4-1/4 L x 3-1/2 W x 2-1/8 H (in.)

Speaker Specification:
Color: Chrome
Handlebar Mounting: 1 to 1-1/4″
Plug and Play
Cable length: 70″ each
Dimensions: 4 W X 5 L (in.)

Package Includes:
2 x Waterproof Speaker
1 x Waterproof Amplifier
1 x Wired Control
1 x 3.5mm Audio AUX Cable
1 x SAE to Ring Terminal Power Cord
2 x 1 to 1-1/4″ Swivel-able Mounting Clamp
1 x User Manual

Additional information

Support Bar Sizes(in.)

1, 1-1/4, 7/8


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User's Manual