Xsquare Portable Speaker Video by Pinnacle Promotions This promotional speaker is mini but packs a punch. It's compatible with laptops, smartphones and mp3 devices with a 3.5 mm output. It includes a USB cable for charging the battery and the 3.5 mm audio connector. It's available in three colors - red, blue and black. Your logo is screenprinted at the top of the speaker. These come packaged in a velvet pouch and gift box, making them an excellent employee gift.