Help Guide
Wireless Noise Canceling Stereo Headset
WH-CH720N
Specifications
Headset
Power source:
DC 3.85 V: Built-in lithium-ion rechargeable battery
DC 5 V: When charged using USB
Operating temperature:
0 °C to 40 °C (32 °F to 104 °F)
Charging time:
Approx. 3.5 hours
(About 60 minutes of music playback is possible after 3 minutes charging. About 4.5 hours of music playback is possible
after 10 minutes charging.)
Note
Charging and usage hours may be different depending on the conditions of use.
Charging temperature:
5 °C to 35 °C (41 °F to 95 °F)
Mass:
Approx. 192 g (6.8 oz)
Impedance:
325 Ω (1 kHz) (when connecting via the headphone cable with the headset turned on)
31 Ω (1 kHz) (when connecting via the headphone cable with the headset turned off)
Sensitivity:
108 dB/mW (when connecting via the headphone cable with the headset turned on)
99 dB/mW (when connecting via the headphone cable with the headset turned off)
Frequency response:
7 Hz - 20 000 Hz (JEITA)
(when connecting via the headphone cable with the headset turned on)
Communication specification
Communication system:
Bluetooth Specification version 5.2
Output:
Bluetooth Specification Power Class 1
Maximum communication range:
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