IPX5 waterproof technology offers impermeable protection which can totally resist water spray and splash Equipped with 2 powerful horns and DSP technology, intensify low-end frequencies that are true to your music and hits harder Total 60W output power delivers the monstrous sound and controls the excellent balance between high, mid, and low frequencies Bluetooth 5.0 technology, provides a greater wireless range and a more stable Bluetooth connection for all Bluetooth devices 3 playback modes of AUX/TF card/Bluetooth, support TWS interconnection and voice assistant mode The intelligent noise reduction function allows you to make a clear Bluetooth call without delays and noisy Specifications: Shell material: plastic Bluetooth version: 5.0 Chipset: ACT2819 Speaker size: 66mm Waterproof: IPX5 Function: support voice assistant, TWS function 3 Play mode: Bluetooth/TF card/AUX Music format: mp3, ape, FLAC, wav Frequency Response: 80Hz-18KHz Signal-to-noise ratio: 802dB Battery: 3.7V/6600mAh Charging time: 3 hours Power supply: Type-C 5V/2A Playtime: Up to 8 hours (varies by volume and audio content)