• Multi-function design: Bluetooth 4.0 speaker + power bank + bike light + phone holder

• Wireless bluetooth speaker, you can connect your mobile phone for calling and playing music
  

• 4400mAh power bank can charge your phone or other device in emergency

• LED lights for light and warning function

• With phone clamp for holding your phone with width of 50-90mm
  

• Also support TF card and AUX input for playing music

• IP54 waterproof and dustproof, shockproof and high temperature resistant  
  

• Compact size and exquisite appearance, excellent for outdoor sports and travel
  

Specification: 

• Charging voltage/current: 5V/15A

• Bluetooth pairing range: 10m

• Lamp illumination range: >50m

• Cell phone holder range: 50-90mm

• Audio frequency response: 100Hz-18KHz

• Audio distortion: <1%

• Audio SNR: >60dB

• Audio output power: 5W

• Standby current: <02mA

• IP level: IP54