Sony WH-CH720N Noise Cancelling Wireless Bluetooth Over Ear Headphones with Mic, Up to 35Hrs Battery

Size and Weight WEIGHT Approx. 192 g General Features HEADPHONE TYPE Closed DRIVER UNIT Dynamic, 30 mm IMPEDANCE (OHM) 325 ohms (1 kHz) (when connecting via the headphone cable with the unit turned on) , 31 ohms (1 kHz) (when connecting via the headphone cable with the unit turned off) FREQUENCY RESPONSE 7 Hz–20,000 Hz (JEITA) FREQUENCY RESPONSE (ACTIVE OPERATION) 7 Hz–20,000 Hz (JEITA) FREQUENCY RESPONSE (BLUETOOTH® COMMUNICATION) 20 Hz–20,000 Hz (Sampling frequency 44.1 kHz) SENSITIVITIES (DB/MW) 108 dB / mW (when connecting via the headphone cable with the unit turned on) , 99 dB / mW (when connecting via the headphone cable with the unit turned off) VOLUME CONTROL Yes CORD TYPE Single-sided (detachable) CORD LENGTH Approx. 1.2 m PLUG Gold-plated L-shaped stereo mini plug INPUT(S) Stereo Mini Jack WEARING STYLE Over Ear DSEE Yes PASSIVE OPERATION Yes AMBIENT SOUND MODE Yes Battery BATTERY CHARGE TIME Approx. 3.5 hrs BATTERY CHARGE METHOD USB BATTERY LIFE (CONTINUOUS MUSIC PLAYBACK TIME) Max. 35 hrs (NC ON) , Max. 50 hrs (NC OFF) BATTERY LIFE(CONTINUOUS COMMUNICATION TIME) Max. 35 hrs (NC ON) , Max. 40 hrs (NC OFF) Bluetooth® Specification BLUETOOTH® VERSION Bluetooth Specification Version 5.2 EFFECTIVE RANGE Approx. 10 m FREQUENCY RANGE 2.4 GHz band (2.400 0 GHz–2.483 5 GHz) PROFILE A2DP, AVRCP, HFP, HSP SUPPORTED AUDIO FORMAT(S) SBC, AAC SUPPORTED CONTENT PROTECTION SCMS-T Noise Cancelling AMBIENT SOUND Yes https://www.sony.co.in/headphones/products/wh-ch720n/spec?view=plaintext