Headphone Audio-technica wireless earphones (blue) [ATH-C200BT BL]

Product description ※Please note that product information is not in full comprehensive meaning because of the machine translation.

Specifications
Driver : φ 12 mm
Output sound pressure level : 106db/mW
Reproduction frequency band : 20 to 20000 Hz
Impedance : 32 Ω
Microphone section
Type : Electret condenser
Directivity : Omni-directional
Frequency band : -42dB (1V/Pa, at 1 kHz)
Frequency band : 80 to 10000 Hz
Communication specifications
Communication distance : Bluetooth standard Ver. 4.1 compliant
Used frequency band : 2.4 GHz (2.402 GHz to 2.480 GHz)
Modulation format : FHSS
Supported Bluetooth profile files : A2DP, AVRCP, HFP, HSP
Supported codec : SBC
Content protection : SCMS-T format
Power supply : 3.7 VDC lithium polymer battery (built-in type)
Charging time : approx. 3 hours *
Usable time continuous communication (when playing music) : approx. 9 hours
Continuous standby : maximum approx. 200 hours *
Mass : approx. 15g
Operating temperature range : 5 ° C to 40 ° C
Accessories : Clip, USB cable for charging (30 cm, USBType-A / MicroUSB Type-B), instruction manual, outer box 20000