Wireless headphones Joyroom JR-HL1 Bluetooth Headset black

Chipset: JL6936D 
Wearing: over head
Bluetooth version: V5.0
Sensitivity: -80dB
Bluetooth frequency: 2.401GHZ～2.482GHZ
Bluetooth protocol: HFP/A2DP/AVCTP/AVRCP/AVDTP/GAVDP
Microphone sensitivity: 102db ± 3db
Rechargeable battery capacity: 300mAh
Impedance: 32Ω±8%(1KHZ)
Audio signal-to-noise ratio: ≥90dB
Speaker unit: Φ40
Play time: 16-18 hours (70-80% volume)
Call time：16-20 hours
Standby time: 5100 hours
Power input: 5V-1A
Charging time: 3-5 hours
Material: ABS + PC