Zealot s53 wireless Bluetooth speaker 20W portable subwoofer HIFI heavy Bass FM Radio TF card 1Px6 Waterproof outdoor small speaker. Sound quality upgrade to 57mm full-range loudspeaker and bass diaphragm design both combine to create a three-dimensional, powerful bass to enjoy the passion sound wave.Shocking sounds-our speaker Tws technology allows you to pair two portable Bluetooth speaker with your phone for true dual enhanced stereo sound, giving you a small, cinema feel.Compact & practical – small size and light weight, can be hug on the bag or duffel bag. High efficiency 4400mah lithium battery can be used to power the power all day. Wireless Portable Bluetooth Speaker should be a must have in your life. Zealot s53 wireless Bluetooth speaker 20W portable subwoofer HIFI heavy Bass FM Radio TF card 1Px6 Waterproof outdoor small speaker. Sound quality upgrade to 57mm full-range loudspeaker and bass diaphragm design both combine to create a three-dimensional, powerful bass to enjoy the passion sound wave.Shocking sounds-our speaker Tws technology allows you to pair two portable Bluetooth speaker with your phone for true dual enhanced stereo sound, giving you a small, cinema feel.Compact & practical – small size and light weight, can be hug on the bag or duffel bag. High efficiency 4400mah lithium battery can be used to power the power all day. Wireless Portable Bluetooth Speaker should be a must have in your life.