Bluetooth specification)：Bluetooth 5.0
Chip：AC7006F
Pairing name：ANC-Headphone
Support agreement：HFP ，A2DP，AVRCP
Effective range：10 m
Working frequency：2.402 -2.480GHZ
Transmission power：CLASS 2
Charging voltage：DC 4.75-5.25V
Charging current： 350 ｍA
Charging time：2.5 h
Operating current：≤ 25 mA
temperature range：-20ºC to +60ºC
Call time：About 12 h
Play time：About 15 h
Standby time：About 19 h
Static current after shutdown：About 1 uA
Maximum Paired Number：2pieces
Feature: BT5.0