Product specification: 1. Product weight: 5-6g (single earphone) 2. Working time: about 3-4hours 3. Standby time: 200h 4. Charging time: 1-1.5 hours 5. Single earphone battery capacity: 30mAh 6.Charger Box Betty: 200mAh 7. Wireless distance: 12m 8. Compatible mobile phones: headphones are compatible with Android, IOS, Microsoft, etc., 100% of mobile phones with Blue tooth. Product Features: 1) Listening to songs and calls, supporting listening to songs and making calls. 2) Caller number, last code callback, full intelligent Chinese and English tone prompts, power on, pairing, power off and off the phone, etc. 3) Each time the Bluetooth headset is connected to the phone, the Bluetooth headset will automatically connect back to the phone when it is turned on, which is convenient and faster. 4) Intelligent compatibility: Support all mobile phones with Bluetooth function, tablet, notebook, sing, Q music, movies, etc. 5) Support ios13.2 above popup. 6) Bluetooth 5.0. 7) In-ear Smart Sensor. 8) Rename, GPS positioning (Only support IOS system with Bluetooth version 13.2 and above). 9) Real Battery Window 10) Touch Control Super bassAuto power onAuto power offBinaural callsPrevious song, Next song. 11) Support daily waterproof and sweatproof (Does not support flushing and soaking). Content: 2 * Mini Bluetooth Earphones + 1 * charging box + 1 * USB charging cable(lighting) + 1* User manual.