The Hoco BS47 True Wireless Speaker is a portable sports loudspeaker that offers high-quality sound with Bluetooth connectivity. This portable speaker has an SD Card slot, USB-C port for charging (cable included inside box) and a microphone for calls of you want to use it. Multiple colours are available, in multiple quantities! The sound quality is really good for the price which, as someone who loves good quality audio, I was surprised myself. For the price, you won't be disappointed! If you have any questions, do let me know before purchase. If you want multiple, or have a custom requirement or anything of the sort, feel free to get in touch and I'll be able to help you as much as I can!