The perfect all in one trolley party speaker. True wireless technology allows you to connect two of these units together for a surround sound effect. 12 watts of raw power provides superior sound quality. The 2400 mah battery allows for up to 5 hours of music playtime. 7 led light colours and microphone create a perfect party atmosphere. The extendable handle and wheels allow you to move this speaker around with ease. Features karaoke night has never sounded better, this speaker delivers clean amplified sound bringing more life to any party features a built-in led display transport this speaker easily with the extendable trolley handle and attached wheels quickly recharge this speaker battery for up to five hours of music playtime able to sync with a second speaker speaker unit size: 8"