Altec Lansing's most powerful speaker is back and better than ever. This rugged， robust speaker is designed with an IP67 waterproof rating， so you can keep working or partying without fretting the elements. The convenient handles make transportation from party to party a breeze and the smartphone dry-box allows your belongings to stay dry， even if the speaker doesn't. Amplify the Altec Lansing sound with House Party Pairing， pair up to 50 house party speakers at once. With up to 20 amazing hours of sound from the built-in rechargeable battery， never worry about your playlist being interrupted due to a dead battery. Sound comes first and with the Sonic Boom 2 experience the biggest， loudest and most powerful sound yet. With 30-Watt of dynamic power and beast mode bass boost， this speaker will blow your mind. Plus， with 3 built-in USB charging ports， keep your phone or device ready at all times. Never worry about being disconnected， again.

IP67 waterproof rating waterproof， shockproof， snowproof and it floats

House party pairing pair up to 50 speakers together at once for a true house party mode

Battery life features up to 20 hours of battery life

Smartphone charger deliver an extra rapid boost to your smartphone

Hands free operation built in onboard microphone and TTS spoken caller ID

Wireless range 50 ft. wireless range