Non Ear Plug Bluetooth Headphones, Wireless Bluetooth Earbuds Sport Earphone Ear-Hook Single Wireless Bluetooth Earbud Noise Cancelling Mic Earpiece Headphone for Smartphone.

Specification: Communication: Wireless Vocalism Principle: Dynamic Transmission Type: Wireless Frequency Response Range: 20-20000Hz Volume Control: Yes Active Noise Cancellation: Yes Sensitivity: 923dB Waterproof: No Wearing Style: Ear Hook Connectors: USB Control Button: Yes With Microphone: Yes Wireless Type: Bluetooth Bluetooth version: V4.2+EDR Bluetooth profiles: HFP,HSP,A2DP,AVRCP, Operating distance: 10M Transmission power: CLASS 2 Rechargeable battery: 75Ma (With charging protection function) Talk time: 6 hours Standby time: 160 hours Charge time: about 1.5hours play music time: 6 hours NOTE: Change the Bluetooth language method: 1.If your buletooth is on and connected, first turn it off and disconnect it. If it is already off, keep it as it is. 2.Then we have to first reset the bluetooth. To do that, put on the bluetooth and continue pressing the ON button until the Red and Blue lights begin to flicker simultaneously. The filckering of red and blue lights shows that the Bluetooth is reset now. 3.Now press the On and Off Button two times continuously. Then you will get a notification that your language has been reset to English.