Come and see our amazing products. LONG STANDBY---The new and improved 200mAh lithium polymer battery allows seamless enjoyment of music for up to 30 hours and 28 hours clear calling, 60 hours of stand-by, only take 2 hours to fully charged, battery status always displayed on your phone. 360 HD SOUND QUALITY---DSP noise cancelling technology reduces outside noises, enable clearer microphone sound. Built-in microphone delivers HD audio clarity, good sensitivity, anti-interference characteristics. HIGHLY COMPATIBLE AND UNIVERSAL---Bluetooth V4.1 technology with talking and music function, easy and fast pairing with smart phones and tablets. VOICE PROMPT FUNCTION and TWO DEVICES CONNECTED---D5 headset can remind user Incoming call number, Power on/off,Pairing, Connected/Disconnected via voice. Pls confirm with us about the packing info, stock color and exact production time before placing your order.