3,754,000
Wireless version: 5.3
Working frequency: 2.402-2.480GHz
Support Bluetooth protocol: A2DP1.3/
AVCTP1.4/AVDTP1.3/AVRCP1.5/HFP1.5/
SPP1.0/SMP/L2CAP 4.2
Transmission distance: ≥10m
Response frequency: 20~20000Hz
Audio signal-to-noise ratio: ≥90dB
Music time: 5~6 hours (70% volume)
Charging time: about 2 hours
Battery capacity: 3.7V, 35mAh