Ultimate Ears WonderBoom 3

Get that big, bassy stereo sound from one little speaker
Tap the Outdoor Boost for audio that's specially tuned for the great outdoors
WONDERBOOM 3 has an impressive 14 hours of playtime. So, you can focus on having a good time
IP67 rating gives WONDERBOOM 3 the durability to withstand dust, dirt, and even a splash or two. It can even get submerged in water for 30 minutes, making it the perfect compadre for the pool, beach, trail, or shower
It's built to take 5-foot drops and with 40 meters (131 feet) of wireless range
Press once to double up. Press again for a full two-channel stereo assault– that's left and right channels blasting from each respective speaker
Maximum sound level: 86dBC (normal) and 87dBC (outdoor)
Drivers: Two 40 mm active drivers and Two 46.1 mm x 65.2 mm passive radiators
Rechargeable lithium-ion battery for up to 14 hours of battery life. Actual battery life will vary with use, settings and environmental conditions
Charge time: 2.6 hrs (with BC1.2 Compliant Adapter)
Connect up to two source devices at the same time. Wirelessly play (stream) to 2 WONDERBOOM 3 from one source
Mobile range: 40 m (131 FT) range
For audio playback: smartphones, tablets and other devices that support Bluetooth and BluetoothSmart wireless audio profile [Advanced Audio Distribution Profile (A2DP)]
Height: 104 mm
Diameter: 95.3 mm
Weight 420 g (speaker only)