BLACK Stereo Speaker Dock For iPod Nano Touch iTouch Unique foldable design enhances portability and easy storage features. Delivers high quality audio from aluminum speakers. Specifications: Color: Black; Speakers: 50mm, 4 Ohms; Signal cable: 22cm with 3.5mm plug; Output: 1W x 2; Frequency response: 150Hz-18kHz; Dimensions (folded): approx. 4.40" x 2.40" x 2.40" inches (11.18 x 6.10 x 6.10 cm); Weight: 0.4 lbs. Power Supply: USB Power Cable. Batteries (4 x AAA). AC 6V Power Adapter. Note: AC 6V Power adapter and Batteries are not included. This amplified portable speaker combines delicious style with refined sound. Cute and fresh, they will fill your space with the sound of music.