Product details and images as below:
3 in 1-TWS eabuds with speaker and power bank
1.Bluetooth Version:V5.0+EDR
2.chipset:Realtek 8763BFR
3.profile:HFP, HSP, A2DP, AVRCP and SPP
4.Bluetooth Distance :10 M
5.Impedence:32Ω ± 15%
6.Frequency Range:20hz-20Khz
7.Sensitivity:95 ± 3dB
8.Battery:Earbuds: 40mAh/Battery box:1200mAh
9.Driver Size:Φ8mm MC
10.Charging Time:3h
11.Charging input(Amps):DC 5V
12.Playtime(50% volume ):5h
13.Playtime(100%volume ):4h
14.Waterproof:IPX5
Unit pack:15.8 * 8.2 * 6.1 CM
Unit pack Weight:285g