Specification:
Bluetooth version: V 5.0
CPU frequency: 96MHZ
Working voltage: DC 2.2V-5.5V
Signal to noise ratio: ≥92dB
Effective distance: barrier free 10m
Frequency response range: 20hz-20khz
Sensitivity: 98dB
Nominal resistance: 32 Ω
Transmission power: Class 2
Headphone battery capacity: 50 mAh
Battery capacity of charging bay: 500 mAh
Charging input: 5V /500mA
Charging time: about 1 hour
Use time: 4-7 hours
Music time: 3-4 hours
Bluetooth protocol: A2DP/AVCTP/AVDTP/AVRCP/HFP/SPP/SMP
Product size: 28*21*15mm/1.1*0.82*0.59''
Color: Black, White
Note:
Please allow 1-3mm differs due to manual measurement.
Due to the different display and different light, the picture may not show the actual color of the item. Thanks for your understanding.

Included:
2 X Bluetooth Earphones
1 X Charging Cable
1 X Charging Box
2 X Earmuffs
1 X User Manual