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Active noise canceling technology, wideband (voice), hi-fi stereo, A 2 D P, D S P, Battery Capacity: 350 mAH Battery Type: lithium ion Listening Tim

Power on/off; Call answer/end; Mute; Volume +/-, Mic: Noise cancelling, Up to 13 hours (talk time); Up to 52 hours (standby time), Wireless: DECT™, Bl

0.02 Pounds

Fullband stereo media audio 20 Hz-20 kHz; Wideband stereo telephony 100 Hz-6.8 kHz, Up to 13 hours talk, up to 50 hours standby time, Line of sight:

Dual-paired four mic DSP noise-canceling technology, dual-mode active noise canceling (ANC) technology, mobile wideband compatibility, A2DP, AVRCP, HF

Dual-paired four mic DSP noise-canceling technology, dual-mode active noise canceling (ANC) technology, mobile wideband compatibility, A2DP, AVRCP, HF

Continuous talk (noise cancelling ON): up to 16 hrs ¦ Continuous talk (noise cancelling OFF): up to 19 hrs ¦ Continuous hearing (noise cancelling ON):

Continuous talk (noise cancelling ON): up to 16 hrs ¦ Continuous talk (noise cancelling OFF): up to 19 hrs ¦ Continuous hearing (noise cancelling ON):

Bi-directional, USB, Black, Weight: 0.12 kg, Microphone Type: Bi-directional Input Impedance: 32 Ohms Sensitivity (headphone): 111 dBSPL +/- 3 dB S

32 Ohms, Bi-directional, USB, Black, Weight: 0.197 kg, Height: 171 mm Width: 151 mm Depth: 68 mm Cable length: 1.9 m

H540 USB COMPUTER HEADSETWith High-Definition sound and on-ear controls

22 Ohms, Bi-directional, USB, Black, Weight: 0.1 kg, Height: 160 mm Width: 175 mm Depth: 60 mm Cable length: 1.8 m

20 - 20000 hertz, Wired [Jack (3.5mm) ,USB Type C] Wireless [Bluetooth], Light Gray, Mute button, Noise-cancellation suspend button, Power on/off, Vo

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