Fangrui Product Details Experience The Innovative Audio Technology With The Adin Portable Bluetooth Vibration Speaker. This Wireless Subwoofer Utilizes Advanced Vibration Resonance To Deliver A Powerful And Immersive Sound Experience. For Any Music Enthusiast, The Speaker Features:enhanced Audio Performance: Delivers Rich, Deep Bass And Crisp Treble Through Vibration Resonance Technology. Portable Design: Compact And , Ideal For Travel Or Outdoor Activities. Wireless Connectivity: Easily Connect With Your Phone Or Other Bluetooth-enabled Devices For Seamless Audio Streaming. Built-in Microphone: Allows For Hands-free Calls And Voice Interactions. Construction: Built To Withstand Everyday Use While Maintaining Sound Integrity. Turn Any Into A Soundstage And Enjoy Your Music Anywhere With This Versatile Wireless Speaker. Frequency: 160hz-18khz Effective Distance: 10 Meters Output Power: 5db Battery Capacity: 1400 Mah Output Mode: Bluetooth, Aux Input Rated Voltage: 5v Power: 26w Music Endurance: 3-6 Hours Charging Tim