Sony WH-CH720 Bluetooth Headphones

General features:

• WEARING STYLE: Over Ear
• AMBIENT SOUND MODE: Yes
• CORD TYPE: Single-sided (detachable)
• DSEE: Yes
• HEADPHONE TYPE: Closed
• PLUG:Gold-plated L-shaped stereo mini plug
• 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
• DRIVER UNIT: Dynamic, 30 mm
• FREQUENCY RESPONSE (BLUETOOTH® COMMUNICATION): 20 Hz - 20,000 Hz (Sampling frequency 44.1 kHz)
• FREQUENCY RESPONSE (ACTIVE OPERATION): 7 Hz - 20,000 Hz (JEITA)
• INPUT(S): Stereo Mini Jack
• PASSIVE OPERATION: Yes
• CORD LENGTH: Approx. 1.2
• WEIGHT: Approx. 192 g

Battery:

• BATTERY CHARGE METHOD: USB
• BATTERY LIFE (CONTINUOUS COMMUNICATION TIME):
  
  • Max. 35 hrs (NC ON)
  • Max. 40 hrs (NC OFF)
• BATTERY LIFE (CONTINUOUS MUSIC PLAYBACK TIME):
  • Max. 35 hrs (NC ON)
  • Max. 50 hrs (NC OFF)
• BATTERY CHARGE TIME: Unfortunately, the information about the battery charge time is not provided.

Bluetooth specifications:

• EFFECTIVE RANGE: Approx. 10 m
• FREQUENCY RANGE: 2.4 GHz band (2.400 0 GHz - 2.483 5 GHz)
• SUPPORTED AUDIO FORMAT(S): SBC, AAC
• SUPPORTED CONTENT PROTECTION: SCMS-T
• BLUETOOTH® VERSION: Bluetooth Specification Version 5.2
• PROFILE: A2DP, AVRCP, HFP, HSP

Noise cancelling:

• AMBIENT SOUND MODE: Yes