Powerful sound: The JBL Go 4 is about to become your everyday grab-and-go speaker, with a compact design that fits in the palm of your hand, delivering loud, clear JBL Pro Sound and rich, punchy bass Keep the good times rolling: Don't worry about running out of battery because this speaker has up to 7 hours of playtime on a single charge; a tap on PlaytimeBoost gets you an additional 2 hours Your music anywhere: This sturdy little speaker is IP67 waterproof and dustproof so it can handle almost any environment, from a poolside party to a picnic by the sea Multi-speaker connection: Pair two GO 4 speakers for superb stereo audio or wirelessly connect multiple compatible JBL speakers using Auracast for even bigger JBL Pro Sound Items delivered: 1 x JBL Go 4 speaker, 1 x USB-C cable, 1 x quick start guide, 1 x warranty & safety sheet, in black. Brand JBL Model name JBLGO4BLK Speaker type Multimedia Connectivity technology Bluetooth Special feature Bass Boost, Portable, Multi Room Audio, Dustproof Compatible devices Smartphone Mounting type Tabletop Controller type App Control Surround-sound channel configuration 2.0 Material Plastic, Metal