Visiontek RockDoc PITBULL BLUETOOTH - Speaker - For Portable Use - Wireless, Wired (900578) Category: Speakers New mini aluminum vibration film loud speaker. The unique design makes tone performance perfect. Metallic shell is fashionable, out of the ordinary and in an array of colors to compliment today's portable devices and accessories. Mini audio box with proprietary technology provides portable, mobile music for your MP3, MP4, phone, GPS, notebook computer & Micro SD/TF.Specifications Features two-way Speakers Bluetooth Wireless Capability - Wireless connection to any portable BT device