52MM Large Driver for Better Sound Experience S53 adopted large driver with passive radiator. You can experience bold sounds with bass even against noisy backgrounds. 360° True Wireless & Easy Carrying Dual Pairing function to achieve a 10W crystal clear & stereo deep bass music as you wish. Small built body with strip make it fit for every corner in your life. Never miss a beat. IPX6 Waterproof Wireless Speakers S53 waterproof bluetooth speaker is resistant to splashes, rain and mild sprays. Perfect for showering, hiking, camping. Be the rocker of your journey. Extend Playtime The larger 3600mAh rechargeable battery can play up to 24 hours at 1/2 volume, long enough for any outdoor activity. What can you get with your buying? 1* S53 Bluetooth speaker 1*3.5mm audio line 1*user manual