Fixed Wireless GSM Desk Phone SIM Card Mobile

Description: portable wireless terminal gsm desk phone sim card mobile desktop telephone item specifics: color: black shell material: plastic size:196x152×51mm / 7.7x6x2 in output power: gsm900 way: class 4 (2w) gsm1800 mode: class 1 (1w) working temperature: 0 ~ 55 degree relative humidity: 5% to 95% adapter input voltage: ac 50hz, 220v + 10% backup battery: ni-mh battery, 3000 mah standby time: 48-72 hours, depending on the network status may be (battery power) talk time: 2-6 hours, depending on the network status may be (battery power) charging time: for the first time more than 12 hours, after 6 hours operating frequency: gsm850mhz-900mhz-1800mhz-1900mhz