Bluetooth 4.1 range up to 100 feet. Double up the sound with EcoConnect that allows the connection of 2 EcoBoulders (mono or stereo mode) within 30 feet of each other

Audio sources include Bluetooth, AM or FM or wired aux in connection. Play on standard AC wall power for continuous, or built in battery for 10 hours at full volume and up to 100 hours on low volume

100-Watts dynamic power amplifier for massive sound with built in 2 band bass / treble equalizer + 5 factory preset equalizer settings and proprietary audio DSP chip