Please refer to the manual for the installation process. The speaker has 3 wires to be connected; the power cord of the speaker needs to be powered all the time (standby state),the radio data can be saved; the speaker turns on when the control line is connected to the 12V power supply.

Features:
1. Bluetooth Wireless
2. Audio 3.5mm AUX IN
3. USB 2.0 ：USB Drive in mp3/mp2/wav/wma format
4. microSD Slot : In mp3/mp2/wav/wma format
5. FM Radio
6. Display with Clock

Parameter of the band FM:
Cover: 87.5-108 MHz
Sensitivity: ≤37dB
Distortion: ≤0.5%
SNR: ≥40dB

Specifications:
Rated Voltage: 12V DC
Max Input Power: 7W x 2
Rated impedance: 4-8Ω
Bluetooth Ver.: 2.1+EDR
Bluetooth Protocol: AVRVP1.0,ADVTP1.0, A2DP1.0, GAVDP1.0
Wireless transmission range 15m
Frequency range: 20Hz-20KHz

Package Included:
1 x Speaker Stereo Main Unit (Included Power Harness 20 Inch)
2 x Mounting Clamp (For Diameter 7/8 Inch Handlebar)
2 x Spare Mounting Clamp (For Diameter 7/8~1 Inch Handlebar)
2 x Extension Bracket
1 x Extension Power Harness (20 Inch)
1 x User Manual