1.Using energy saving, high efficiency LED technology, light, flashing variety of operating modes,illuminate the way forward
2.Support alarm whistle, U disk ,"Emergency Kit" and so on
3.Support MP3, WMA format music files
4.Stereo Super Bass
5.Double magnetic and Inside magnetic trumpet
6.Built-in high-capacity lithium batteries, playback
7.Aluminum shell, stylish, free to enjoy the bright life
8.Suitable for bicycle with special clamp to fasten on bicycle for music playing or lighting

1.Speaker: 45MM diameter 4Ω 3W
2.Output power: RMS 3W THD = 10%
3.Audio power: 90Hz
4.Whole SNR: ≥ 70dB
5.Charging power supply: DC 5V-1A
6.Charging time :3-8 hours (3-5 hours by AC charger, 7-8 hours by computer)
7.Operating Voltage: DC 3.7V
8.Battery capacity:2800mA