● Bluetooth version：AC6976D / 5.0V
● Battery specification：Headset 3.7V/40mAh；Charging box 3.7V/300mAh
● Support mode：HFP/HSP/ A2DP/AVRCP
● Transmission distance：10 meters (in an ideal environment without any major obstacles)
● Play time：About 5H hours @50% volume
● Call time：About 5 hours @50% volume
● Standby time：About 80 hours
● Charging time：Charge the charging compartment for about 1.5 hours, and charge the headset for about 1 hour
● Charging box to charge the headset：About 2 times