[Product Information]

✔ YAMAY Wireless Bluetooth Headset with microphone， over the head design， Noise canceling， duel sharing， supports online conversations in Skype， QQ， MSN， battery life allows 12 hours of continuous talk or 250 hours of standby， it is perfect fit for the truck drivers， telephone operator， call center...
✔ Compatible: This headset only can work with the bluetooth 4.0 enabled cell phones or computers， like， Samsung， iPhone， LG， Huawei， Dell， Apple， HP， so please make sure your device has bluetooth function before buying. 【 It is specially designed for calling， not for music. Not supporting listen to music.】
✔ Multipoint function: The headset can work with 2 cellphones at the same time， but no two computers or one cellphone and one computer. And talk， play music， game just one headset to solve. Cause it is impossible that the headset is playing two cellphones's music at the same time. When the headset has connected with 2 cellphones， if it is used to make calls with any one of them， the headset will disconnect with the other one automatically temporarily， and reconnect after calls end.
✔ Mute Function: Please press and hold the "volume -" button for seconds， until you hear "du du du"， then the mute function is on， the same way to turn off the mute function. Note: you will hear "du du du" every 5 seconds when the mute function is on. If you will be noised by the beeping， you can buy the M20 model， this model will no beeping when mute. here is the link of M20， https://www.amazon.com/dp/B015WC6720.
✔ Three Month Warranty: At YAMAY， we’re continuously developing innovative products and keep customer satisfaction as our number one priority. To ensure that you receive a product you’re happy with， each purchase is back with our three-month warranty