any other MP3 player that has a 3.5mm jack port The speaker requires 1 x AA battery (Not Included), The speaker measures approx 8 cm x 4 cm x 2.5 cm, Manufacturer: bea  (less)

iCoaster combines sight, sound and speed with extreme magnetism, high-tech design and some ultra-cool physics. Build 10 suggested extreme coaster configurations or apply your own creativity for infinite more designs. Assembling the new white towers, yellow-green tracks, sensors, stunts and Magnetic Elevator is easy, fast and exciting. Place the sensors along tracks, turn on the music player and create your own mix of tunes and effects. You can also plug in your MP3 for your own music selections. Crank up the volume and enjoy the ride!  (less)

its caliber, V.Flash builds in a high dosage of learning with its exclusive collection of SmartDisc software. It's the perfect balance between learning and entertainment. With each SmartDisc, players can navigate through the Smart Play Game Zone, Creative Workshop and Knowledge World, all featuring a library of real customized videos. Each SmartDisc is encased in a protective shield that ensures safe, scratchproof play. System comes with joystick, AC power adapter and cables for connecting to your TV, plus your child's first SmartDisc (Jumpin' Bean Island) to start her off on her collection. Additional SmartDiscs sold separately. Measures 7.7"L x 11.8"W x 3"H.  (less)