1. Bluetooth version: 5.0 2. Bluetooth distance: L > = 10M 3. Charging time: about 30 minutes 4. Charging time: about 1 hour. 5. Earphone battery capacity: 36MAH. 6. Charging box battery capacity: 350MAH. 7.IOS/ANZHUO /Mac OS and Windows are fully compatible. Tap SIRI twice from your left ear 9. Tap the right ear twice to pause the playback 10. Tap your left ear three times Tap your right ear three times, next song. 12 calls: left to answer the phone, right to answer the phone, left and right to hang up.