... BTL stereo amplifier, compatible with different audio device such as laptop, mobile phone,ipod ,MP3,MP4 and CD.Especially designed ... box(gift box),30 set per export carton, the carton size is L 495mm *W265mm *H284 mm, the inner box( ... gift box)size :L240mm *W 88mm *H50mm Gross weight:18.9 kg /carton ... the deposit by T/T or the original L/C. Mini speaker for laptop