还可以再延长小型发言

MS-100 mini speaker: Main Features: • Extendable bass chamber: open it to get better bass resonance, or close it to get better portability. • Hamburger shape: music hamburger, a great feast to your ears and eyes, but just listen, don’t eat it! • Delicate appearance: refined superfacial treatment, the best ornament of your music life. • Retractable cable: just a gentle pull to extend and retract the cable, get you out of the mess caused by the overlong cable. • 2-in-1 mini USB port: through which you can recharge speaker and input audio, one port is better than two! • Anti-slip base: three soft and flexible small rubber balls set into the buttom, a good care for your speaker. • Eyelet for strap: just hang it on your bag via keyring, real travel speaker. • Rechargeable Li-ion battery: big capacity and long playtime. • Compatible with: Mobile, MP3/MP4, laptop/desktop, iPod/iPhone, CD/DVD etc. • Available in any colors: red, black, white, silver…, or make to order. Configurations: • 2-in-1 mini USB port • Power and volume switch • LED power indicator • ABS housing Technical Specifications: • Rated power: 2W • SNR≥89dB • Frequency response: 150-20KHZ • Speaker drivers: 3.6 cm, 2W/4Ω • Output: 4.2V/250MA • Size: D52×H36-53mm (approx.) • Weight: 50g (approx.)