... which can control playing the music Electronic plush dog video player (with remote control version)1,1.5V * 4 AA ... built-in 3W dual-channel amplifier3, built-in MP3 player function, support SD card, U disk and other storage ... support MP3.WAV formats such as music files.4, with remote control, control the following functions(1)Volume ... 6-8 three-digit number electronic plush dog video player