Can be used without turning on the phone signal. Continuous discussion can be used 2 hours can be used for continuous three-car Wi-Fi 11 hours long 10-hour continuous watch video and listen to the 50 hours of continuous music.
You can use the machine without opening the phone. Up to 14 hours can use Wi-Fi, 11-hour continuous three-hour continuous video 10 hours and 50 hours of continuous music.
Can use the machine without opening the cell phone signal can use the ongoing conversation 14 hours can be used Wi-Fi continuous 11 hours. Three car videos for continuous 10 hours and listening to the continuous 50 hours.