Product name
Wireless Bluetooth Headphones
Bluetooth version
V5.0
Bluetooth working distance
50 meters(in open space)
Speaker impedance
29±1 Ohms
Earphone battery
3.7V/33mAh
Charging case battery
3.7V/300mAh
Frequency response
20HZ-20KHZ
Microphone Sensitivity
-42dB
Master control protocol
SBC/mSBC and AAC
Battery
AirTune C2
Up to 4 hours of listening time with a single charge;
Up to 3 hours of talk time with a single charge;
AirTune C2 with Wireless Charging Case
More than 15 hours of listening time;
Up to 10 hours of talk time; 15 minutes in the case provides up to 1.5 hourslistening time or up to 1 hour talk time.
