Bring this portable speaker along for your next party. Line-shape diffuser spreads sound further. IP67 Water resistant dustproof and shockproof. X-balanced for a distortion-free sound. Ambient noise sensing helps save battery when outside. Multipoint connection pairs two devices at once. Echo cancelling lets you talk to two people at once without cutting either off. Easy to use buttons and features a mic mute button. Party connect combines up to 100 compatible wireless speakers to sync music. Compatible with Sony Music Center App. Dual passive radiators. Frequency range: 20Hz-20000Hz. Battery life: 24 Hours. Quick charging provides 70 minutes of playtime on a 10 minute charge. Rechargeable via type-C USB port. Internal parts are made of recycled plastic making it environmental friendly. Dimensions: 4.133" x 9.370" x 4.685".