Playback time 2-3 hrs, Talk time 4 hrs, Standby time 10 hrs Lightweight, Magnetic charging case, Suitable for all Outdoor activities such as Walking, Jogging, Running, Cycling, Instructions for use : 1) Turn on charging box switch. Blue or Red light is on. 2) Open the top cover and take out the earphones. ( Important note: Turn on the charging box before opening, which is premise of the earphones automatically turning on). 3) Pair with other device. Open Settings, click on Bluetooth, search for device name i12. Click to connect to Bluetooth. 4) Earbuds are put into charging box to enter the charging mode. Earbuds are automatically turned off. 5) Wireless earphones can be connected seperately to other devices. 6) Wireless earphones will automatically shut down if not connected to the Bluetooth device for 5 minutes. Touch Control functions : (1) Long press 5 secs (L/R) to Turn on, Turn off. (2) Click 1 Times (L/R) : Play, Pause and Answer/End Call. (3) Click 2 Times (L) : Reduce Volume. (4) Click 2 Times (R) : Increase Volume. (5) Click 3 Times (L) : Last song. (6) Click 3 Times (R) : Next song .