Gemini Sound GRV-2650L UltraRave Duo portable Bluetooth party speaker — 200W peak, dual 6.5" woofers, 10-hour battery

When you need a speaker that can actually carry a party — backyard, basement, block party — the Gemini Sound GRV-2650L UltraRave Duo brings the sound and the light show. Two 6.5" woofers and two 2" tweeters push real bass and clear highs, the LED lights sync to the beat, and the built-in battery keeps it going for about 10 hours. Grab the handle and go.

Key features

• Real bass from a portable speaker — Two 6.5" woofers and two 2" tweeters give you the kind of low end and clarity most portables can't touch. Loud enough for a packed backyard or a full basement.
• LED lights that actually react to the music — Selectable lighting effects sync to what's playing, so the room feels like a party without you touching a thing.
• Pair two for true stereo — TWS lets you wirelessly link two GRV-2650L speakers (or one with its smaller sibling, the GRV-650L) to spread sound across a bigger space.
• Karaoke that sounds good — Comes with a wireless mic, plus pitch shift and key change so anyone at the party can sound like they meant to hit that note.
• About 10 hours of battery — Enough to get through a long night outdoors. Recharges in around 3.5 hours when you're done.