Specification: Lightning.
Wireless connection version: 5.3.
Wireless transmission Distance:≥15 m.
Transmission frequency: 2.4GHz-2.48GHz.
Battery capacity: 30mAh.
Standby time: 180hrs.
Charging case battery capacity: 300mAh.
Music time: About 4hrs.
Talking time: About 3.5hrs.
USB charging: About 2hrs.

Features:
Main-secondary switching.
Pop-up window.
Tap function.
Intelligent Induction.
HIFI clear voice.
Silicon case and lanyard.
Standard: GB/T14471-2013.
Earphone: Fit in ear.