DESIGNED FOR THE OUTDOORS – IP67 waterproof and dustproof rated protection whether it's raining, snowing or you are in the middle of a dust storm. Drop it in a pool, lake or ocean, no worries - it floats; This speaker is built tough and shock proof to handle all the elements MASSIVE SOUND - a dynamic 100-watt Texas Instruments power amplifier drives a 6 x 9-inch full range main driver, with a 1.7-inch tweeter for up to 121 decibels of balanced, quality acoustics that is loud enough for the outdoors which you won't find on ordinary portable speakers ECODSP BUILT-IN - integrated high performance 24-bit DSP with audio enhancing engine provides 3 equalizer settings for either maximum bass, a warmer profile for inside, or a high frequency profile to max out the decibel level so you can play it loud; Also includes a dedicated external microphone DSP with 3 EcoEQ settings to optimize your voice for the perfect portable PA or to sing along with music (mic sold separately) ECOCAST ST BUILT-IN - wirelessly connect with up to 100 EcoCast enabled speakers, soundbars, towers speakers and radios to create a massive true left and right stereo or mono (party mode) system for the ultimate party (EcoCast is not compatible with the previous generation EcoConnect technology) BATTERY LASTS FOR DAYS - play continuously on standard AC plug-in power, or built-in battery for 25+ hours at average listening levels (6+ hours at full volume) MULTI-AUDIO SOURCE INPUTS AND OUTPUTS - connect to your phone from up to 100 feet away with built-in Bluetooth 5.1; switch playback between two connected phones without having to disconnect a phone; use the built-in speakerphone to conduct calls or connect to your favorite voice assistant; External microphone jack with dedicated volume control for PA or campfire sing along (mic sold separately) The DEFENDER by ECOXGEAR is our latest next generation waterproof speaker. Packed with the latest technology, it brings 121 dB of massive sound in a portable speaker that only weighs 10 pounds. Waterproof - protection whether it's raining, snowing or you are in the middle of a dust storm Massive Sound - a dynamic 100-watt power amplifier drives a 6 x 9-inch full range main driver, with a 1.7-inch tweeter for up to 121 decibels of balanced, quality acoustics you won't find on ordinary portable speakers EcoEsp Built-in- integrated high performance 24-bit DSP with audio enhancing engine provides 3 equalizer settings for either maximum bass, a warmer profile for inside, or a high frequency profile to max out the decibel level so you can play it loud; includes a dedicated external microphone DSP with 3 EcoEQ settings to optimize your voice for the perfect portable PA or to sing along with music(mic sold separately) EcoCast Built-in - wirelessly connect with up to 100 EcoCast enabled speakers, soundbars, towers speakers and radios to create a true left and right stereo or mono system for the ultimate party (EcoCast is not compatible with the previous generation EcoConnect technology) Multi-Audio Source Inputs and Outputs - connect to your phone from up to 100 feet away with built-in Bluetooth 5.1; switch playback between two connected phones without having to disconnect a phone; External microphone jack for PA or campfire sing along (mic sold separately) Multi-Color LED Backlit Speaker - built-in LEDCast lighting controller with addressable RGB LEDs behind the speaker; includes a built-in flashlight with 3 levels of brightness up to 100 lumens Battery Lasts for Days - play continuously on standard AC plug-in power, or built-in battery for 25+ hours at average listening levels (6+ hours at full volume)