Model Number: BT884
Chipset: JL7016G
BT Version: V5.3
Charging case battery: 250mAh (about 2H charging time)
Earbud battery: 35mAh (about 1H charging time)
Charging interface: type-c
Music playback time: 5-6H (around 80% volume)
Call time: 5H
Frequency response range: 2.40GHZ-2.480GHZ
Headphone sensitivity: 107±3dB
Microphone sensitivity: -42±2dB
Noise reduction depth: -45dB
Speaker: Φ13mm