The JBL's PARTYBOX ON-THE-GO portable Bluetooth speaker, user can enjoy Bluetooth wireless music streaming and party lighting almost anywhere. Bluetooth connectivity also allows for putting two compatible speakers together for real stereo sound or use up to two wireless microphones for a karaoke duet. This powered speaker contains a USB input and a 1/4" microphone/guitar jack for playing from compatible drives. A 5.25" woofer and two 1.75" tweeters offer up to 100W RMS power to the speaker. Between charges, the built-in battery may last up to six hours. The PartyBox On-the-Go comes with a shoulder strap and a built-in bottle opener to make moving it around easier.