Description: 
<br />1. It is a bluetooth speaker as the outdoor riding mate. You can use it to listen music when you are bicycling or have a picnic, camping. It also be used indoor. 
<br />2.Can be as a mobile power bank. It's capacity can charge twice for Phone. 
<br />3. Has emergency flashlight function. It can be used as a temporary spare flashlight when you suddenly enter a dark environment  
<br />4. Support TF card 
<br />5. Has FM fuction. (FM function will better when it is plug in audio cable) 
<br />6. Is IPX5 waterproof and dustproof skid 
<br />
<br />Feature: 
<br />1. Battery capacity: 4000mAh 
<br />2. Bluetooth Version: CSR 4.0 
<br />3. Transmission distance: 10m 
<br />4. Input voltage: 5V/ 1A 
<br />    Output voltage: 5V 
<br />    Output power: 3W 
<br />    Work voltage: 3.7V 
<br />5. LED lamp power: 1W 
<br />6. 3 LED modes: Normal, Weak, Flash 
<br />7. Speaker: 4  
<br />8. SNR:  90dB 
<br />9. Frequency response: 20Hz - 20KHz 
<br />10. Distortion: 1% 
<br />11. Music time:  5hrs 
<br />12. Standby time:  30 days 
<br />13. Size: 156 x 51 x 51 mm 
<br />14. Color: Blue 
<br />15. Weight: 260g 
<br />
<br />Package include 
<br />1 x S1 bluetooth speaker 
<br />1 x Bicycle bracket 
<br />1 x USB charge cable
<br />1 x  Metal Hook Loop