QINERSAW Bluetooth 5.0 Wireless Earbuds, Sweatproof in-Ear Headphones with Built-in Mic for Sports, Running & Gym - HD Stereo Sound, Secure Fit for Active Lifestyle

Charging voltage: DC 5VBluetooth version: Bluetooth V4.0Charging interface: USBSupport Agreement: HFP/A2DP/AVRCPListening to the song: 6 hoursEffective distance: 10 metersMicrophone: built-inCharging time: 2.5 hoursAudio input: 3.5mmFunction: Support Bluetooth connection, switch/pause songs (press and hold the volume adjustment button/short press the previous one) to connect the phone and reject the call.Thank you very much for your trust and support, and I wish you a happy life.

The intelligent quad-core Bluetooth 4.0 technology improves the interference between the old Bluetooth protocol and the 4G network. The new Bluetooth 4.1 technology has an automatic noise reduction function, and allows the Bluetooth headset to connect two mobile phones at the same time. With CSR chip, stable performance and strong compatibility

Naturally comfortable to wear all day, ergonomically designed to wear angles, soft fit, any ear type, all-day wear is natural and comfortable

HD call DSP intelligent noise reduction, high-definition noise cancellation technology, intelligent noise reduction, intelligent blocking background noise, so that the sound quality of each call is clear and transparent

Really one for two smart connections, support multi-point connection technology, reject single docking, call and listen to songs to switch freely, let you listen and chat as you like

If you have any questions, please contact me and we will be at your service 24 hours a day.