With miniature emergency lamp, and can work at longest reached 12 hours. Solar energy LED emergency light technicial parameters:1. Portable mini speaker fir for IPOD, MP3, MP4 Player, PC & Mobile PHONE2. Color Led:12 PCS3. Speaker system: 4ohms 2W4. Frequency response: 80Hz~18KHz5. S/N ratio:>65dB6. Power supply: Li-Hi battery 3.7V Size:206*118*99mmN.W.548gG.W.644gColourDark