Our company also develop other electronic products.Now we have developed 6 styles of multifunction dynamo torch .Mainly function including: 1.self power flashlight----for bright ,no battery needed; 2.build in AM/FM radio----for music or information all over the world; 3.siren----for help in dangerours situation- earthquake, typhoon, power failure.. 4.digital clock / alarm---- for time and alert; 5.four different DC output----for moblie phone,MP3 charging; 6.warter proof----you know that .... Of course ,it is not every series has all the functions, but we can add or reduce them as you request.Or if you have better opinion of the appearence,we can also change it for you.There is much difference of the price of these products! Just buy it! Its profit for you and your customers!