Bluetooth  Version : 5.3

Frequency : 20HZ-20kHZ

Impedance : 169+15%

Case Battery : 600mAh

Headphone Battery : 80mAh

Charging times : 3

Input : DC5V 500mA

Play Time : up to 40hrs.

Standby Time : 360hrs.

Charging Time : 45min. (headphone) 1hr.(case)

open-ear design lets you hear your surroundings while enjoying clear, enhanced audio. With a smart color touchscreen, dual mics for crisp calls, silicone speakers, and up to 40 hours of battery life, it's made to keep pace with your active lifestyle.