リチウムイオン二次電池
The Sound BlasterAxx AXX 200 has got a built-in 5200mAh Lithium-ion battery allowing it to be used as a portable Bluetooth speaker. It has got a microSD card slot for playing WMA/MP3 tracks from a microSD card. Calls and voices can be recorded through its microphone to the microSD card. There is a megaphone function allowing it to be used as a megaphone.