EPOS HD 450BT Headset Head-band USB Type-C Bluetooth Black

Storage temperature (T-T): -20 - 60 °C
Operating temperature (T-T): 0 - 40 °C
Weight: 238 g
LED indicators: Yes
Product colour: Black
Recommended usage: Calls/Music
Volume control: Button
Headset type: Binaural
Wearing style: Head-band
Detachable cable: Yes
Product type: Headset
Control type: Buttons
Foldable: Yes
On/off switch: Yes
Cable colour: Black
Control unit type: On-ear control unit
Sound pressure level (max): 108 dB
Operating keys: Volume +, Bluetooth pairing, Answer/end call, Volume -
Quick start guide: Yes
Cables included: Audio (2.5mm to 3.5mm), USB Type-C to USB Type-A
Carrying case: Yes
Safety sheet: Yes
Bluetooth: Yes
Connectivity technology: Wired & Wireless
Frequency band: 2.402 - 2.480 GHz
Bluetooth profiles: SBC, HSP, A2DP, HFP, AAC, AVRCP
USB connectivity: Yes
Bluetooth version: 5.0
USB connector: USB Type-C
Battery voltage: 3.7 V
Battery type: Built-in battery
Charging source: USB
Battery capacity: 600 mAh
Battery technology: Lithium Polymer (LiPo)
Continuous audio playback time: 30 h
Battery operated: Yes
Battery recharge time: 2 h
2.5 mm connector: Yes
Number of microphones: 2
Microphone direction type: Omnidirectional
Microphone type: Built-in
Microphone frequency: 80 - 6000 Hz
MEMS (Micro-Electro-Mechanical System) microphone: Yes
Driver unit: 3.2 cm
Impedance: 35 Ω
Ear coupling: Circumaural
Headphone frequency: 18 - 22000 Hz
Total Harmonic Distortion (THD): 0.3%
Noise canceling type: Active
Driver type: Dynamic
Noise canceling: Yes