JR-X2 Wireless Bluetooth Air Conduction Headphones

Name: Air wireless bone conduction headphones
Model: JR-X2
Type: open-ear
BT version: V5.1
BT profiles: HSP/HFP/A2DP/AVRCP
Speaker sensitivity: 113±3dB
Frequency response range: 20Hz-20KHz
Speaker impedance: 32Ω±15%
Rated power: 2mW
Speaker size: Φ14.2mm
BT range: ≤12m
Play time: about 8h (80% volume)
Talk time: about 7h (80% volume)
Standby time: about 48h (connected)
Headphones battery capacity: 140mAh
Headphones charging time: about 1.5h
Charging input: DC5V/1A
Charging mode: Type-C
Material: ABS+silicone
Net weight: about 23g