Gross weight: 28.9 kg                 

Bluetooth specification: Bluetooth4.2
Support bluetooth protocol:
L2CAP/A2DP/AVRCP is supported for receiving stereo audio signals, and the up-down operation of audio transmitter can be controlled by the protocol.
Support HSP/HFP(Handsfree profile), with hands-free function, can conduct voice communication
Wireless transmission range: 10M
Audio noise ratio: greater than or equal to 90db
Battery capacity: 1200mAh
Built-in voltage: 3.7v
Normal volume: 3H
Horn specifications: 45 mm * 2 ￠   
The speaker power: 4 Ω / 5 w * 2
Frequency response: 120hz-20khz
Size: 72.6 x72.9 x178.7 mm
Single machine weight: 490g(single machine)
Charging voltage: 5V/500mA
Charging time: 3-4h
Color: black, red, blue, green, gray