TWS F9 Earbuds 9d Stereo

V1.Bluetooth Version: V5.0 2.Bluetooth Distance: 10m 3.Charging Time: about 1-2 hours 4.Standby Time: about 80 hours 5.Music Time: about 3 hours 6.Talking Time: about 4 hours 7.Earphone Battery: Polymer Lithium Battery 50mAh 8.Battery Box Battery: Polymer Lithium Battery 2000mAh 9.Audio transmission format: HFP/A2DP/HSP/AVRCP packing list: 1* Pair Of F9 TWS Wireless Earbuds 1* Charging Case 1* Micro-USB Cable 1* User Manual 4* Ear Tips