Formal written price quotations are hereby invited for the following: Supply and deliver of headsets for disaster management centre. Specifications: Control room headsets, qty: 10: - Up to 13 hours talk time, 50 hours standby time and Unlimited talk and standby; - Rechargeable, replaceable, lithium-ion polymer; - Line of sight: 450 ft/137 m; Typical office environment: 130 ft/40 m; - Active noise cancelling (ANC) (W8220); - Wideband: 100–6800 Hz; Multimedia 20 Hz–20 kHz; - Sound Guard digital: protects against sound levels above 118dBA; G616 anti-startle (during calls) detects and eliminates any large sudden increase in signal level; Time-weighted average prevents average daily noise exposure from exceeding 85dBA; - Wideband: 100 Hz–6800 Hz; - 112 dB SPL max, Mono: 115 g; (Stereo): 160 g; (Convertible): 21g (over-the-ear); - Call answer/end, mute, volume +/-, ANC on/off, power on/off; - Multiple voice prompts; - Configurable by Poly Lens software; - Poly Lens App (Windows and MacOS); - All in one base combines charger with 3-way connectivity to computer-desk phone and mobile phone desktop charger with separate USB DECT adapter for a single connection to a computer; - Global 2-year warranty; - Carry case D400 USB-A DECT™ adapter, USB-A to USB-C adapter, charge stand and charging cable; - Spare battery, headband, neckband and fit kit with ear loops and ear buds; - Installation of software included. (Ausschreibung №102806176de)