HCX-6 portable common battery telephone, HCX-6 portable magnet telephone 
 HCX-3 magnet phone once caused a sensation, I believe we have heard of or used, but due to the changing times, the HCX-3 magnet phone has been replaced now Jining East Asian production of the new HCX-6 instead of the magnet power generation, voice clear the whole waterproof, impact resistant, anti-drop, small size, light weight, easy operation, suitability, and good electromagnetic compatibility, etc., call quality clear mission, the communication distance up to 21KM, customer calls are welcome consultation. 
 For wired communications for field and laboratory 
 Better security performance with encryption circuit 
 This unit uses three (plain on the 1st battery), the communication distance (two phone communication distance of 21 km), clear voice, the whole waterproof, impact resistance, drop resistance, small size, light weight, easy operation, and suitability electromagnetic compatibility, etc., call quality clear mission, not the feeling of distortion and noise. 
 -40C ~ +55 C environment (low temperature cold batteries), is a good position electronic telephone to replace the magnet telephone 
 The phone can be specialized communications such as mining, railways, factories, construction sites, as well as floods, earthquakes and other natural disasters to provide emergency communications support. 
 The main technical indicators: 
 Operating temperature: -40 ℃ ~ 50 ℃ 
 Shape size: 50mm × 110mm × 240mm 
 Weight: ≤ 1.55kg 
 Power supply voltage: 4.5V (three batteries) 
 Fat bell frequency: 16Hz ~ 30Hz 
 Closing the ring level: ≥ 70dB (A) 
 Margin: ≥ 55V (3kΩ load) 
 Fat bell duration: 1s ~ 2s 
 Transmission characteristics: Simulation subscriber line length 5Km 
 Send loudness rating (dB) ≥ 5 ≤ 18 
 Receiving loudness rating (dB) ≥ -13 ≤ 2 
 Sidetone masking assess the value (dB) ≥ 0 ≥ 2