The TS115 Vibe has the same power and size as the TS115, but with the added flexibility of an MP3 player that can play files from a compact USB flash drive or a micro SD card." Just like all other Truesonic powered loudspeakers, the TS115 Vibe features modern Class D amplification with 800 Watts of peak power. Both the 15" low frequency and 1" neodymium high frequency drivers are designed to make sure that virtually no energy is wasted, so sound engineers get more power from the amplifier working to generate sound rather than heat. Users can stream MP3, WMA, or AAC music files instantly from a USB flash drive or micro SD card with no external player or mixer required (flash drive and micro SD card not included). The TS115 Vibe"s built in media player supports iD3 tagging and displays the artist, song, and album titles on a crystal clear backlit LCD screen. Navigation, transport controls, and Folder Search controls are all built in to the back of the speaker. This integrated technology eliminates the need to pack mixers and keep track of cables and adapters just to play music at an event. The TS115 Vibe gives singers and performers a convenient solution for playing backing tracks or music in between sets..