Stereo portable speaker Rectangle 16 W Grey, Blue 70 - 20000 Hz Wireless Bluetooth Built-in battery 2400 mAh 20 h 1 pc(s) 16W Stereo Sound and Dual Full-Range DriversElevate your listening experience with rich 16W stereo sound and crisp clarity thanks to dual full range drivers.BassUpTechnology for Powerful BassOur BassUptechnology delivers punchy bass to add depth and resonance to your favorite tracks.Ultra-Portable DesignThe lightweight 1.27 lb design makes it easy to take your music with you wherever you go.20-Hour PlaytimeWith a 20-hour playtime, you can keep the beats going all day and night on a single charge.IPX7 Fully WaterproofFeatures IPX7 waterproofing so you can relax and listen with no worries by the pool, at the beach, and on outdoor adventures. Loudspeakers Driver diameter 3.75 mm Number of passive radiators 2 Number of drivers 2 Number of speakers 2 Audio Frequency range 70 - 20000 Hz RMS rated power 16 W Ports & interfaces USB charging port Yes AUX in No USB connec