Powervoller Outdoor Bluetooth speaker with power pack function for extensive music enjoyment at indoor or garden parties with your phone, tablet, or laptop. Rich sound for parties at home or in the garden: two 20-watt speakers and two passive radiators (10 watts each) on the side panels for powerful audio. Enjoy your favorite songs for a long time: the speaker can be used via Bluetooth for 12 hours. Integrated power pack: smartphones, tablets, etc. can be charged directly via USB on the speaker. True Wireless Stereo: connect two speakers via Bluetooth and place them freely in the room for real stereo sound. Splash-proof according to IPX6: whether in the shower or relaxing by the pool, you can enjoy good music even in spray, rain, and splashes. With the indoor/outdoor mode, you can optimally adjust the sound experience to the environment at the push of a button, automatically balancing treble and bass. Three modes offer the perfect sound for every situation: indoor mode, outdoor mode, and 3D mode for immersive 3D sound. Full mobility thanks to battery operation with LED charging indicator: quick charging within 3.5 hours via USB-C interface. Bluetooth version 5.0: fast, stable, and energy-efficient data transmission. Integrated hands-free function. Connect the portable speaker via AUX-In for energy-saving wired use. Durable, washable surface – in case it gets muddy at the festival or garden party. Always have sound at hand: portable speaker with handle and carrying strap. Consumer note: The usage time via Bluetooth depends on the volume: 8 hours at 70% volume, 12 hours at 50% volume, 30 hours at 10% volume.