Logitech Core Megaboom 4 Waterproof Bluetooth Speaker, 360-Degree Sound, 20h Battery, Black Stereo Audio Cables Lens Construction: 17 elements in

Lens Construction: 17 elements in 12 groups (4 aspherical elements)

24 Hour Timer - Yes

Fast Auto Focus​

Advanced Controls

For the first time ever

Logitech Core Megaboom 4 Waterproof Bluetooth Speaker, 360-Degree Sound, 20h Battery, Black Stereo Audio Cables Lens Construction: 17 elements inMEGABOOM 4 Product Feature: THUNDERING BASS MEGABOOM 4 delivers powerfully loud, clear and immersive 360 sound with thundering bass. Its even bassier than the previous generation. Featuring Ultimate Ears signature sound, you can hear every note which is carefully balanced. VIRTUALLY INDESTRUCTIBLE MEGABOOM 4 is built tough and ready for adventure. Dunk it. Splash it. Drench it. Crank it. MEGABOOM 4 is designed to get seriously wet and keep on booming.