Bluetooth V5.3. This microphone features your favourite character with backlit LED light that changes colour on the front of the speaker and voice changing functions for even more fun. Voice changing features for even more fun. Compatible with all devices, including smartphones, tablets, PCs and laptops. Plus, it comes with a USB connector that allows you to play music from your USB storage. Fast charging and up to 6 hours use within a 10m radius. 800 mAh, 4 hours playback.