... , safety, no pollution, no memory, and the capacity is up to 2400mAH; long life, can be used circularly 1000 times ... file,19SMD LED weak light works, push it back, stop lighting.3. When using the MP3 sound, product keys, function keys is defined ... ”: for playing next song5) rotary potentiometer: clockwise rotation to turn up the volume, counterclockwise rotation to decrease volume 4. When charging ...