Etekcity RoverBeats T1 Portable Wireless Bluetooth Speaker, Powerful High-Def Surround Sound with 4 Speakers (Certified Refurbished) This Certified Refurbished product is tested & certified by Etekcity to look and work like-new. The product includes all original accessories, and is backed by a 90-day warranty High-precision, seamless touch-media controls, Up to 8 hours of playback per charge Features the newest digital decode sound processing technology for top-quality, high performance sound, with 4 speakers CSR2.1 chip to connect quickly and easily to all Bluetooth devices up to 33 feet away; 3.5 mm aux port for wired connections Attractive appearance with six anti-skid and heat resisting mats on bottom of speaker added stability; ABS material for radiation protection