Smart Touch Control: You can skip/play/pause a track, answer/reject phone calls or activate voice assistant just by tapping it. Comfortable to wear: Additional eartips included to customize your fit into the ear canal to prevent the earphones from dislodging. Great Connection: Reliable and stable connection without call or music dropouts. Auto Pairing: Once paired, the earphones will automatically pair for future use. Tech Info: Bluetooth version: 5.3 Bluetooth chipset: JL6973 Frequency range: 2.4-2.48GHz Transmission distance: up to 10m Frequency response: 20-20kHz Playing time: up to 6 hrs Battery capacity: 30mAh/side *2 Box capacity: 350mAh Charing times: 3 times around charging time for earbuds: approx 1.5 hrs charging time for box: approx. 1.5 hrs Standby time: up to 180hrs