Artsound PWR01 Portable BT Speaker 20W IPX7 Waterproof Black The PWR01 is a waterproof Bluetooth speaker that will knock you off your feet: that’s how surprisingly full and deep the sound of this ‘little one’ is. It keeps high and low notes perfectly balanced. Thanks to its cylindric design, the music sounds ‘loud and clear’ from all sides. The built-in LED lights add a visual experience. By the way, the PWR01 is sturdy and it can take some bad weather, because it is waterproof at level IPX7. And as if that isn’t enough to convince you, it has a handsfree call button to your smartphone, TWS technology for wireless connection... this speaker has it all. Everything about it is premium quality Amp Power: RMS 16 W, class D  Range: < 20 m² System: 2-way Frequency range: 80Hz - 20kHz Dimensions: 84 x 95 mm (Ø x H) Weight/piece: 0,328kg Sources: stereo Bluetooth [TWS] Power supply: USB-C (DC 5 V ±0.5/2A) Sensitivity: 75 dB Housing: ABS + textile + TPU Output: 3.5 mm headphone jack Functions: hands-free call Battery: Li-ion 3.6V 2500mAh; 12h Waterproof: Yes (IPX7) Wireless Bluetooth: 5.0 (10 m) Atmosphere: Lighting LED - 3 light themes Speaker driver: 2 x 1,77” Charging time: 3>4h charging