Stereo sports in-ear headphones

Bluetooth protocol: Bluetooth 5.0
  Color matching: white.
Bluetooth solution: Jerry D8 (two-channel voice call)
Bluetooth support: HSP.HFP.A2DP.AVRCP
Transmission distance: 20m
Sound unit: 13mm
Frequency range: 2.42-2.48GHz
Battery: headset 50mAh charging box 350mAh
Charging voltage: DC4.75-5.25V
Charging time: about 1 hour
Bluetooth music time: about 4 hours
Talk time: about 5 hours
Standby time: about 100 hours
Charging compartment size: 44 * 54 * 21mm
Single set of bare metal weight: 36g