K 4

Product description

Shockproof dustproof waterproof IP*4
Bluetooth Version: 2.1+EDR
Bluetooth IC: JR
Built-in Battary:400mAh
Output power :3W*2
The magnetic trumpet:45MM*2
Input sensitivity:400mV
Frenquency:50Hz-20KHz
SNR:≥88dB
Working voltage:DC 5V
Size:85*70*133mm
Colour box size:86*76*138mm