1.Wireless connection Blue tooth: 5.0
2.Blue tooth protocol: HFP/A2DP/ HSP/AVRCP
3.Communication distance: 10 meters (accessible environment)
4.Dual headphones continuously listen to songs for about 4 hours
5.Headphone standby time: about 120 hours
6.Single earphone battery capacity: 45mAh
7.Charging box battery capacity:250mAh
8.Headphone charging time: about 1.5 hours
9.Charging box charging time: about 2 hours
10.Single earphone net weight: about 4.1g
11.Total net weight with charging box: approx. 35.4g
12.Charging box size: 62 × 40 × 27.2mm
13.Headphone size: 26.65 × 16.4 × 21.6mm