Cebek TR-4 is an electronic sound recorder-player. It allows you to store any music, conversation or sound effect of up to 16 seconds as maximum time. The recording remains in memory even after disconnection of the power supply. The TR-4 incorporates a 5W RMS power stage, automatic control gain control circuit, (AGC) as well as protection against incorrect connection of the power supply. It includes indication LED, microphone, and connection terminals.