specification
1.Working voltage:3.7V
2.The illuminating distance: ≥50M
3.MP3 frequency response: 100HZ-18KHZ
5.Degree of distortion:≤1%
6.SNR:≥60dB
7.Output power:≥3W
8.Standby current:≤0.2mA
9.the max current consumption:≤300MA
10. Bluetooth connect distance: ≥10M
11.Stopwatch accuracy error: ≤2%



Feature
1. 32-bit processor system, EQ developing, USB upgrade
2. Interphone function, 20 channels, frequency band: 409MHz/460MHz
3. The stopwatch can show the total distance, time and speed, Bluetooth connection music and call
4. Power bank built-in 3.7V/4400mAh battery, to support the USB port for charging   
5. Support TF/MP3/WMA/WAV formats
6. LCD display, to show the clock, frequency and music under the sun
7. LED light (3W), with near lamp, far lamp and warning flash for choosing
8. Honking as the bicycle bell or alarm to remind the front vehicles or passerby
9. Dust-proof and waterproof level is IP66
10. High fidelity speaker, the clear sound make you relax
11. Clip timber, easy to install and remove, can be rotated 360° and adjust it up and down
12. This bicycle audio is good for entertainment, sporting and touring