Powervoller Outdoor Bluetooth speaker with power pack function for extensive music enjoyment at indoor or garden parties with a smartphone, 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 true stereo sound. Splash-proof according to IPX6: whether in the shower or relaxing by the pool, good music can be enjoyed even in spray, rain, and splash water. 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 provide 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 – perfect for muddy festival or garden party conditions. Portable speaker with handle and carrying strap. Consumer note: The usage duration via Bluetooth depends on the volume: 8 hours at 70% volume, 12 hours at 50% volume, 30 hours at 10% volume.