Wireless listening style. Can be played from USB memory/SD card; Electric CD door that moves up and down, and is used for wall mounting; Product Size: Approx. 14.2 x 3.7 x 7.1 inches (36 x 9.5 x 18 cm); Product Weight: Approx. 2.6 lbs (1.2 kg); Product Material: ABS resin; Product Contents: AC 100 V, Power Consumption: 15 W Bluetooth, Ver. 5 compatible CD-R / MP3 compatible with Ver. 5.0 compatible with CD-R / USB. 10 stations each FM Preset