Zadavatel: United Nations Secretariat, Ženeva – Švýcarsko
RFI – deadline 22/3
Hlavní technické požadavky:
– the listening shells must be dismountable in three parts: the shell, the cable and the earphone,
– the shells must be of plastic, molded in one part, washable in an industrial machine,
– the cable must be equipped with an angled stereo jack 3.5 connector with earphone support
molded with the cable, and on the other side of a gilded and molded “2-pin” plug,
– the magnetic button-type receiver must have the following characteristics:
– impedance (at 1 kHz) of 32 ohms (Ω),
– 50 mVA power supply
– sensitivity (ref 1mW / 1kHz): min. 85dBA
– frequency response (0db @ 1kHz): 200Hz – 10kHz
– attenuation max. at 10kHz: 10dB
– diameter of 20.7mm ± 1mm
– The whole shell + magnetic receiver must not exceed the weight of 25 grams
Pro představu několik fotek: https://owncloud.unog.ch/index.php/s/Q5CMk1PDbmD55DO