High quality, Original design by MYKIND  Product Name: Portable Speaker MODEL NO.: GD-PS308 Stereoscopic effect outward appearance design, eternal classics Pocket-size, high quality stereo sound, built-in digital amplifier Built-in hi quality lithium battery , Long playback time hours Compatible with iPod/mp3/mp4/computer/mobile phone…… Original design By MYKIND Product features: Pocket-size, high quality stereo sound Built-in digital amplifier, Built-in lithium battery Case material: Pure ABS Rate power: 2W x 2 Frequency range: 120Hz~20KHz(Hz) Impedance: 4HM(Ω); Speaker unit: 36mm; Input voltage: DC5(V) We can also print the color box as your design.  Receiving the design file whose format is AI or CDR, we will print a sample for your reference. The mass production will be printed after your confirmation.  Black+silver Gray Red Pink                                                                                         White  Weight: 85g/PCSAudio In: Headphone jack (3.5mm) Dimensions: 105mm*45mm*22mm Accessories: Speaker(1PCS) USB line(1PCS) 3.5(mm)jack line Package: Carton size: 50*32.5*44cm 100PCS/carton 19.5kg/cartonColor : Black System(All Black, Black & Sillier,  Black &Red)/iron grey/Green&siller)