TOPK F23 TWS bluetooth 5.0 Digital Display Earphone Wireless Stereo In-ear Earbuds Headphone with Charging Box

Specification:
Model:F23
bluetooth Chip : 5.0
Material:ABS+ Plating
CPU frequency: 96MHZ
Working voltage: DC 2.2V-5.5V
Signal to noise ratio: ≥92dB
Effective distance: barrier-free 10M
Frequency response scope: 20HZ-20KHZ
Sensitivity: 98dB
Nominal impedance: 32Ω
Waterproof level :IP45
Transmission power: Class 2
Headphone battery capacity: 50 mAh
Charging battery capacity: 400 mAh
Charging time: about 1-2 hours
Hours of use: 3 hours of talk and 3 hours of music playback
Standby time: 120 hours
Weight: about 35g
Supporting Agreement:HEPHSPA2DAVRCP
Support language: English