Chip: JL6973D4

Bluetooth version: V5.3

Loudspeaker impedance: Φ10mm 32Ω±15%

Frequency range: 10Hz~15KHz

Horn sensitivity: 110±3dB

Rated power: 3mW

Wireless transmission distance: Approximate value ≥ 10 meters

Headphone music playback time: ~4.5-5.5 hours

Headset talk time: ~4H

Standby time: >200 hours

Charging time: 1 hour

Battery capacity: 30 mAh (headphones)

300mAh (charging) (with protective board)

Antenna type: Ceramic antenna

Antenna gain: 2.67bB

RF transmit power: 6dB

RF receiving sensitivity: -92dB

Call microphone head: silicon microphone

Charging case 5V input peak current: 300mA/5V/Type-c

The charging case can charge the earphones: approximately 3 times