The surprisingly big sound of WONDERBOOM is guaranteed to sneak up on you. Take it with you wherever you go. If you don’t, it will haunt you. Get Phantom here or at a nearby retailer - it’s already calling your name.SpecificationsHeight (102 mm)Diameter (93.5 mm)weight (425 g)360° SOUNDMaximum sound level: 86 dBCFrequency range: 80 Hz – 20 kHzDrivers: two 40 mm active drivers and two 46.1 mm x 65.2 mm passive radiatorsWaterproof and dustproof – IP67 rated: WONDERBOOM can be immersed in liquid up to 1 m for up to 30 minutes.Rechargeable lithium-ion battery for up to 10 hours of battery life between micro-USB chargesCharge time: 2.8 hrsPair up to 8 Bluetooth® enabled source devicesConnect up to two source devices at the same timeWirelessly play (stream) to 2 WONDERBOOM from one sourceMobile range of play is up to 33 mFor audio playback: smartphones, tablet and other devices that support Bluetooth.