Key Features
Technical specification:
5.1 + EDR Bluetooth Specification:
Noise Reduction: cvc8.0 
Transmission Distance: 33ft 
Frequency response: 20 - 22 kHz 
Capacity: Charging Case 2000mAh / Earbuds 65mAh 
Music Time: 120 hours
Talk time: 150 hours 
Loading Port: USB 
Charging Time: 25 minutes
Playback Time: up to 4 hours
Standby time: 630 hours