Support Bluetooth protocol:
Support L2CAP/A2DP/AVRCP, used to receive stereo audio signals, through the protocol can control the audio transmitter up and down bend operation;
Supports HSP/HFP(Handsfree profile), has the hands-free function, can carry out voice communication Bluetooth: V5.3
Wireless transmission range: 10M
Audio noise ratio: ≥90db
Battery capacity: about 2400mAh
Built-in voltage: 3.7V
Normal volume playback: about 3H (varies with audio content and volume)
Trumpet size: ￠66mm *1
Horn power: 4Ω/8W*1
Frequency response: 120Hz-20KHz
Charging voltage: 5V/1000mA
Charging time: about 3H
