1. PC material 2. Stainless steel flexible tube 3. High strength steel rope 4. Magnets or reed in some handsets Main features and technical parameters Intensity of tension>250kg; strong destruction resistancy Good flame retardancy and hand feeling Temperature: 30∼50                Relative humidity: ≤95Atmospheric pressure: 80∼110 kPa                  Ambient noise: ≤60dBExplosion marking: ExdibBT6          Level of protection: IP54Working frequency: 300∼3400 Hz                  Good call transmission of the matching phone, 4.2-in-GB/T15279-94-compliantMain components: Shell made of PC                             Stainless steel flexible tube; High strength steel rope                        Pierce-proof and hi-fi transmitter and receiver Connect the permanent seat of the case           Magnets or reed in some handsets Customer choice:  The length of flexible tube (90cm normally) is flexible, the diameter of the tube: φ8.4φ7.8φ6.5 Connector can be chosen according to connector series or designated by customers Package: Carton size: 430*380*390mm G./N.W.: 11.5/10.5KG 20Ft Qty: 438ctn      

IP telephone handset