1.solar keychain
2. Material ABS shell
3.2pcs high power LED  (15,000MCD),light distance:5-8m in the evening.   
4. Recharge Ni-hydrogen battery, 3.6V 40mAh. Normally,can be recharged at least 800 times more.         
5. Use single-crystal solar panel charge,in sunny 6-8hours can be charge fully,continue to discharge 3-4hours,use time keep 5 years.   
6.match key ring by your self,convenience and credibility,with compass.       
7. Size:8.3*4.5*2.0CM      
8.Weight:38g