manufacturer of crystal ball subwoofer

Product Parameters Optional voltage: *2 v/*2V **0V/*2V *4V **0V
4 Ω impedance:
Power: *5 w (peak power)
FM radio frequency range: *****0 - MHZ
Sensitivity: **0 mv + *0 mv
Quantity/box: *2 sets/pieces
Product weight (kg) : 1.*5 kg
Product standards (cm) : *0 * *7 * *7.6 (cm)
The whole case specification (CM) : *9 * *3 * *2 (CM)
The gross weight (kg) : *4.*5 kg
The speaker size: 4 inches
Product accessories: remote control and the power cord Product features

you can use the *2 v power supply, support SD card (TF) and bluetooth play music, and a microphone (note: bluetooth and the microphone is optional)

Music format: MP3 format
Waterproof gun barrel
Sound effects: normal/jazz/pop/rock
Color: color, such as red black and blue