Sony WH-CH720N Black

General Features
Driver Unit : Dynamic, 30 mm
Frequency Response : 7 Hz - 20 000 Hz (JEITA)
Cord Length : approx. 1.2 m
Cord type : Single-sided (detachable)
Plug : Gold-plated L-shaped stereo mini plug
General Features (Active Headphones) : Yes
Sensitivity (dB/mW) : 108 dB/mW
Frequency Response (Bluetooth Communication) : Frequency Range(A2DP): 20 Hz - 20 000 Hz (Sampling frequency 44.1 kHz)

Battery
Battery Charge Method : USB
BATTERY LIFE (CONTINUOUS COMMUNICATION TIME) : Max. 35 hours (NC ON), Max. 40 hours (NC OFF)
General Features(Active Headphones) : Max. 35 hours (NC ON), Max. 50 hours (NC OFF)

Bluetooth Specification
Bluetooth version : BLUETOOTH Specification Version 5.2
Effective Range : Approx. 10 m (30 ft)
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 Canceling
Ambient Sound Mode : Yes