Bluetooth Headset,Arobo BH693 Wireless Bluetooth 4.0 HD Stereo Headphones/earbuds/ Earpieces with Microphone - noise cancelling Hands Free for IOS Android cell phone and Bluetooth Devices Up to 8hours of talk time, up to 240 hours of standby time Easy to pair, control volume, start/stop the music, The 180 degrees flip allows to adjust the angle and fit this headset in right or left ear , providing great convenience for users. ENJOY CLEAR CONVERSATIONS ON BOTH ENDS OF THE CALL: Arobo Tech Bluetooth Headset contains Clear Voice Capture CSR&#39;s own echo cancellation and noise suppression DSP software technology for enhancing the audio quality of wireless products. Connect to 2 Devices: It can be connected with up to 2 Bluetooth devices, like iPad+iPhone, at the same time through Bluetooth.COMPATIBLE WITH ALL PHONES THAT ARE BLUETOOTH ENABLED: Apple, BlackBerry By RIM, Cal-Comp, Danger, HP, HP Palm, HTC, Huawei, Kyocera, LG, Motorola, Nokia, Pantech, PCD, Samsung, Sanyo, Sharp, Sony Ericsson, UTStarcom, ZTE If the headset does no connect to Android cell phones, please ensure to use the correct pairing connection. Press the power key for 6 seconds or more, until the voice prompt "pair", red and blue lights flash alternately. Then click on the connection. Please note that the volume will be low in a very noisy background of the call, such as high-decibel ballroom, etc.