More details you can see from the video:
 

                       Always with you regardless of climbing， walking， fishing 
                                                   Take it .  It is time to go out .
















 

Compatible with: Most of mobile phone and tablet PC with bluetooth.

Volume output: 3Watts
Total peak value output: 6Watts at <10% THD
Speaker Specification: 50mm micro speaker， *4Ohm

Decibels: 75dB

Operating Frequency: 60Hz-20kHz

Charging Voltage: USB or AC/DC adaptor 5V

Audio Specifications: 68*45*92(mm) 

Product Weight: 107g

Bluetooth Version: 3.0

Power Capacity: 500mAh

Battery Charging Time: 2 hours
Continuous playback time: Up to 6 hours (Or vary due to environment)
Optional Color: Blue， Green， Purple， Yellow， Red.
 

Special buckle design， easy to buckle on the speaker to your backpack.

Loud and clear voice， also suitable for outdoor use.
Bulit-in microphone， easily turned into handsfree.
Bluetooth speaker， just need you touch the phone gently and connet it.

Waterproof function: Protect from the wet environment and dropping outdoors.

Long Play time and enjoy the holidays.

Package Included:

1 X Bluetooth Speaker
1 X Carabiner
1 X Cable