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:100Hz8000Hz 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