Wireless Public PayPhone double LCD

Wireless Public PayPhone double LCD Function 1. Dot-matrix LCD Display, Large, easy to read, four lines, backlight LCD with status icons. 2. Making calls, receiving calls, phone book. Caller ID. 3. Billing function. While hang up, it will calculate the charge of phone call according to the pre-set call rate. 4. Network management function. Download call rate and parameters from PC when connected with PC Management software. 5. Phone bill storage. Stat.; Yearly total; Monthly total; Daily total. 6. Support function of printing bills (Optional). 7. Speaker Phone; Adjustable voice volume. 8. Long Battery stand-by and talk time. 9. Handfree Operation, Last Number Redial. ItemDescriptionOperating Frequency GSM 900/1800 MHz GSM 850/900/1800/1900 MHz Transmit Power 2W Environment Noise ≤60dBA Receiving sensitivity -104 dBm Dimensions (W×D×H) 310*245*90mm Weight (including internal battery) 1.6 kg Mounting mode Handset Internal battery 3.6 V Ni-HM Maximum transmit power 200mW Typical stand-by power consumption 21mW Ambient temperature -10°C-55°C Storage temperature -20°C-70°C Relative humidity 5%-95% Input VoltageAC 100-240VInput Frequency50/60 HzOutput Voltage12V DC, 1000mA