1Support DC power 4.5V power transformer, support 2 section AA battery. 2Support single loop playback. 3The sound is clear, the appearance is beautiful, the quality is good , and the service life is long. 4Push-button switch, adjust volume and other functions. 5The push-button switch solves the problem of poor contact during use, large and small volume, and damage to the rotating friction parts, resulting in a malfunction of the knob.
