Features:
A2DP/AVRCP high-quality stereo audio transmission and remote control protocol;
Fast charging, HD phone calls;
Voice: you can switch between Chinese and English;
Specifications:
Model: HBQ i7 TWS
Bluetooth version: V4.2 + EDR
Effective distance: 10 m
Wireless technology: 2.4 GHz
Impedance: 32 OHM
Output power: 30 mW
Sensitivity: -42 db
Chip: CSR63120 top chip
Track: bilateral stereo
Working voltage range: 3.0 to 4.2 V
Frequency response: 20-20,000 hz
Power: built-in rechargeable lithium battery (200 mA)
Display: iSO battery display
Connection: you can connect two bluetooth devices at the same time
Playing music/talk time: about 3-4 hours
Standby time: about 100 hours
Product color: white, black
Product size: 46 X 20 X 5 mm/1.81 X 0.79 X 0.20"
A single weight: about 7 g
Gross weight: about 105 g
Package Includes:
1 x HBQ i7 TWS Wireless Bluetooth Headset
1 x USB Cable
1 x Manual
1 x charging station 
