1) Support Bluetooth TWS
2) Blueooth version:JL5.0
3) Earbuds material: ABS+PC+ Gel
4) Charging dock material: ABS+PC
5) Charging box size: 68.3x68.3mm
6) Earphone size: 21.33x28.59x17.57mm
7) Bluetooth support protocol: HFP/A2DP/AVRCP
8) Bluetooth working distance:10M
9) Speaker specification: diameter 6mm/32 ohm
10) Charging box battery: built-in 500mAh polymer battery
Headphone battery: built-in 40mAh polymer battery
11) Charging input: DC 5V/1A
12) Charging box chargingtime: 1.5hours
13) Headphone playback time: 3-4hours (Varies by volume and audio content)
14) Signal to noise ratio: above 85dB