Features: 1. Support music songs and answer phone calls. 2. Call display, all intelligent Chinese and English voice prompt, start up, match, voice prompt when phone power is low. 3. IOS power display: For the power display after the Apple phone is connected to the headset, you can watch the battery condition of the headset at any time. 4. It is also convenient to connect the bluetooth headset to the phone after each shutdown, and then turn on the bluetooth earphone to automatically connect back to the phone. 5. Smart compatibility: Supports all mobile phones, tablets and laptops that support Bluetooth. It is compatible with over 100% of common functions such as APP, player, TV and chat. Specification: Material: ABS Color: White, Black (optional) Bluetooth Version: 4.2 Support Protocol: A2DP1. 3 / HFP1.6 HSP1.2 / AVRCP1.6 / D11.3 Bluetooth Usage Frequency: 2.4GHZ Battery Capacity: Built-in battery 65mAh (Polymer lithium battery) Battery Storage Capacity: 950mAh Standby Time: About 100 hours for one ear standby and 60 hours for two ears standby Call Playback Time: 5-6 hours for one ear and 4-5 hours for two ears Charging Time: 1-2 H Transmission Distance: 12 M Size: Charging box approx. 65 * 53 * 23 mm / 2.6 * 2.1 * 0.9 in Package list: 2 x Mini Bluetooth Earbuds (left and right earphones) 1 x Charging Box 1 x USB Charging Cable 1 x Chinese and English User Manual Note: The bluetooth earphone has a good match when they leave the factory, and both ears need to automatically boo for 1-3 seconds at the same time. No need to double-click the headset.