Specifications; Communication System - Sony ULT WEAR Quick Start Manual

Help Guide
Wireless Noise Canceling Stereo Headset
ULT WEAR

Specifications

Headset
Power source:
DC 5 V (Using a commercially available USB AC Adaptor)
Using built-in lithium-ion batteries (Product Operation Power: DC 3.85 V)
Operating temperature:
0 °C to 40 °C (32 °F to 104 °F)
Charging time:
Approx. 3.5 hours
Note
Charging hours may be different depending on the conditions of use.
Charging temperature:
5 °C to 35 °C (41 °F to 95 °F)
Mass:
Approx. 255 g (9 oz)
Impedance:
314 Ω (1 kHz) (when connecting via the headphone cable with the headset turned on)
32 Ω (1 kHz) (when connecting via the headphone cable with the headset turned off)
Sensitivity:
110 dB/mW (when connecting via the headphone cable with the headset turned on)
100 dB/mW (when connecting via the headphone cable with the headset turned off)
Frequency response:
5 Hz - 20 000 Hz (IEC)
(when connecting via the headphone cable with the headset turned on)

Communication system:

Bluetooth Specification version 5.2
Output:
Bluetooth Specification Power Class 1
Maximum communication range:
1)
Line of sight approx. 10 m (32.8 ft)
Frequency band:
142