CP-7 TWS Wireless Earphone Sport Earbuds Stereo Bass Handsfree Binaural bluetooth 5.0 Earphone Headphones

Spcification:
Color:white / black
Material:ABS
Performance:TWS bluetooth Headset
Applicable models: uitable for all mobile phones and smart devices with bluetooth chip:RELTEK RTL Jerry 6916
bluetooth version: 5.0
Wearing method:In-ear
Functional use:sports, car, business, listening
Channel system:stereo
Voice prompt: adjustable in Chinese and English (adjustment mode: long press for 8 seconds)
Working frequency: 2.402~2.480GHz
Support Protocol:HSP/HFP/A2DP/AVRCP
Transmission distance:10 meters
Transmission power:Class 2
Audio signal to noise ratio:98dB
Response frequency:20~20000Hz
Charging input standard:DC 5V/0.5-1A
Listening to the song time:about 3h
Standby time:about 100 hours
Call time:about 3h
Earphones Battery:3.7V lithium battery, 55mAh, model: 501215
Charging box Battery:3.7V lithium battery, 450mAh, model: 502535
Charging time:earphone: 30 minutes, charging box: 1 = 2 hours
Earphone size:length * width * height (2.5X2.2X1.7CM)
Charging box size:length * width * height (4.4X3.3X5.8CM)
Horn diameter:8mm
Speaker frequency response range:20-20KHz
Speaker impedance:16 ohm
Speaker sensitivity:94db+-3db
Rated power:10 mW
Microphone (silicon microphone):4026
Microphone frequency response range:100Hz–8000Hz
Wheat wind sensitivity:-42db+-3db

Packing list:
2 x Wireless sports headphones 
1 x Charging box 
1 x Usb cable 
4 x Earbuds caps 
1 x User manual