chinacoal09
we provide service of enterprise's customs declaration, inspection.
1 Match light are multiplexed lines. 800Hz telephone impedance is 800 ± 20%.
2 Through two telephones on the same model, even in less than 75db audio noise conditions, the communication distance up to 21 km.
3 In temperature -40 °C (using cold battery) - +50 °C 750 ± 30mmHg pressure and temperature of +40 °C, relative humidity up to 98% of the reliable work environment.
4 All parts are fixed on the rack into one, along with mobile phones are loaded into the enclosure, solid structure to carry and easy to use.
5 volume:222X195X107(mm)3
6 weight:2.5Kg
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