Bluetooth headset ANC

Weight & dimensions
Weight: 181 g
Depth: 74 mm
Height: 178 mm
Width: 176 mm

Performance
On/off switch: Yes
Country of origin: China
Product type: Headset
Headset type: Binaural
Recommended usage: Office/Call center
Product colour: Black
Wearing style: Head-band
Adjustable headband: Yes

Packaging data
Package width: 57 mm
Package height: 203 mm
Package weight: 409 g
Package depth: 220 mm

Packaging content
Receiver included: Yes
Wireless receiver interface: USB
Quick start guide: Yes
Cables included: USB Type-C
Pouch: Yes
Safety sheet: Yes

Ports & interfaces
Connectivity technology: Wireless
Bluetooth: Yes
Wireless range (line of sight): 30 m

Battery
Battery recharge time: 2.5 h
Standby time: 300 h
Charging source: USB
Fast charging: Yes
Talk time (ANC off): 20 h
Input voltage (earpieces): 5 V

Logistics data
Master (outer) case width: 313 mm
Master (outer) case length: 432 mm
Master (outer) case height: 257 mm
Products per master (outer) case: 10 pc(s)

Microphone
Number of microphones: 3
Microphone sensitivity: -20 dB
Microphone frequency: 100 - 16000 Hz
Microphone type: Boom

Headphones
Impedance: 20 Ω
Acoustic system: Closed
Headphone frequency: 20 - 20000 Hz
Total Harmonic Distortion (THD): 0.5%
Ear coupling: Supraaural
Driver type: Dynamic
Noise canceling: Yes
Noise canceling type: Active