Model : i12TWS Dust-proof mesh Good Sound System Works with the latest Bluetooth 5.0 technology to provide fast and stable connection Input : DC5V/ Transmission Distance : 10M Able to use each side independently Able to Answer call from both sides Able to Answer Calls from both sides Listening to the song correct, support songs and call. Power capacity will show on your Iphone, you can see the power situation anytime, do not worry about the electricity ,make your life without worry. One to two connections, can be connected to two mobile phones at the same time. Bluetooth headset connected to the phone after the shutdownand then open the Bluetooth headset will connect back to the phone automatically . support all Bluetooth mobile phone, tablet, notebook, singing it, QQ music, movies, etc. Powerful noise de-noising circuit (active noise reduction). Brand No Brand SKU 100468314_NP-1020762424 Headphone Features Built in Microphone,Noise Cancellation,Sweat Proof,Remote control Wearing type In-Ear connector_1 USB Electronics Features Bluetooth 5.0 Auto Sensor Compatible Devices Not Specified wireless_connectivity Bluetooth Model i12 TWS 5.0