Item Type: Telephone Recorder_x000D_Model: TELREC05_x000D_Memory: Built in 32G storage_x000D_Loop Recording: Support loop recording_x000D_Data Reading: Recording files can be read directly through the U disk function_x000D_Support Phone Type: All analog phones are supported_x000D_Audio Format: WAV_x000D_Operating Temperature: 0 - 40 1Reliable Recording: Designed by embedded system with high speed MCU to make it run stably and record clear sound from phone line unlike other phone recorders that need PC support. 2RJ11 Port: A small black box with two RJ11 ports for phone line input and output, plug in the 5V USB power adapter and the system turns on and starts working. 3Plug And Play: Simply connect the phone cord to the input or line out port, connect the device to the 5V USB power adapter, and automatically recording each call without pressing any keys or buttons. 4Small Size: This telephone recorder is portable, so you can carry it around with you when you need it and easily store it when you don't need it, without taking up too much space. 5Red Light Blinks During Recording: During the recording process, the telephone recorder's red light blinks once per second to let you know the recorder is running. 1 x Host Computer 1 x Data Cable 1 x Plug 1 x Telephone Line 1 x Instruction Manual