... 5V, 6V,9V,12V,18V,24V,7.4V,4.2V,3.7V,7.4V,11.1V,12.6V,14.8V,16.8V3 ... to use16) Used to charge MP3,MP4, digital camera, standard battery or electronic devices.We also provide 3.7V, 4.2V, 7.4V, 8.4V ... , 11.1V, 12.6V, 14.8V, 16.8V travel battery charger. The ... 500 units.Paypal is welcome. Interchangeable plug adaptor battery charger 5V 12V 24V 3.7V 4.2V 7.4V 8.4V 11.1V ...