UR31 Outdoor Sport Waterproof Power Bank Wireless Bluetooth Speaker with Bicycle Holder
Specification:

Model: UR31
Bluetooth version: V2.1+EDR
Bluetooth protocol: A2DP， AVRCP
Transmission distance: 10 meters
Power bank capacity: 4000mAh
Input voltage: 5V-1A(MAX)
Output voltage: 5V-1A(MAX)
Color: Black， Blue， Pink

Package Included:

1 x UR31 Sport Waterproof Bluetooth Speaker
1 x 3.5mm AUX Cable
1 x USB Cable
1 x Bicycle Holder
1 x User Manual