Features:1. Bluetooth Verson 5.0, spport A2DPI.3 /HFP1.6 /HSP1.2 /AVRCP1.6 /D11.32. The Chinese and English smart voice messages, boot, pair, turn off the phone power will send a low voice message;3. The power capacity will be displayed on your Iphone, you can see the energy status at any time, don't worry about the power, let your life worry-free;4. After the Bluetooth headset is turned off, connect to the mobile phone, connect the Bluetooth headset and then automatically turn on the mobile phone, which is more convenient;5. Smart compatibility: compatible with all mobile phones, including Bluetooth, tablets, notebooks, singing, QQ music, movies, etc., universal mobile phones6.Auto- pairing and power on, need open the charge box button before you put the earphone out. Specification:1 drive: 15mm2. Impedance: 32 ohms3 Bluetooth version: Bluetooth v5.0 + EDR5. Power level: Level II6. Output power: 30 MW7. Bluetooth distance: 10 m barrier8. Frequency response: 20Hz 200009 working voltage range: 3.0 V-4.2 V.10. Microphone sensitivity: -42dB11 with A2DP / AVRCP high quality stereo audio transmission and remote control protocol12 powerful noise cancellation circuit (active noise reduction)13 talk time is about 2 hours14 music time is about 2 hoursPackage includes: 2 x Bluetooth mini headphones (left and right headphones)1 x USB charging cable1 x user manualIf at any point you are not 100% satisfied with your order, send us an email and our team will make it right. All payments are secured with industry standard SSL encryption.