PARTY SPEAKERS： Deliver the same song up to 100 Soundhot R9 speakers with PartyCast mode. Sync up with all of your friends at a big party and dance to the same beat. POOL SPEAKERS: IPX7 waterproof Soundhot R9 speaker pipes wireless music to your swimming pool with it completely waterproof coating from inside out. PUNCHY SOUND: Immensely enjoy rich, punchy music with MPOW Soundhot R9 Bluetooth speaker. Dual-speakers' structure ensures a 24W maximum power outbreak. 10H LONGER STREAMING: 4400mAh built-in battery ensures up to 10 hours of wireless music streaming from MPOW Soundhot R9 Bluetooth speaker at a time. COMPACT AND HANDY: Soundhot R9 speaker, covered with woven anti-slip fabric, is easy to carry around with a well-knit lanyard that allows you to hang the speaker everywhere firmly.