Applicable devices: bluetooth 4.2 or later for mobile phones, tablets, laptops.

Bluetooth function: turn the switch to the position with the bluetooth logo,
activate the bluetooth on the device, and click the connection to play.
Wired playback: each speaker is equipped with a charging cable that can be used on the phone.
Answering the phone: after the audio and bluetooth match,
you can press the "answer" button to answer the phone.
When the battery is fully charged, it can play for about 2 hours continuously.

Specification:
100% brand new with high quality
Color: Black
Model: Music Box
Connectivity: Wireless
Type: Portable Speaker
Speaker Type: bluetooth speaker
Active and passive: Passive
Adjustment: Wrench
Features: Bluetooth wireless connection, Handsfree calling, Voice prompt
Power Supply: 300mAh Lithium Polymer Battery, DC5V-500MA
Speaker unit: 1.2 inch 4ІИ
Output Power: 3w
Wireless Transmission Range: <10m
Frequency Anger: 100Hz-20KHz

Package included:
1 x  Mini bluetooth speaker

Note:
The colors may be a little difference for the different monitor display.