[Features] 1.Innovative Design - Simple design, perfect for the size of your palms. Ultra-portable and easy to put in your bag. So you can hang it in your home or outside. 2.Bluetooth 5.0 technology - equipped with advanced technology, compatible with all Bluetooth compact devices. The speaker will automatically reconnect to the last used device. . 3.Excellent Sound Quality - Enjoy stereo and enjoy your music with dual high-performance drivers and unique enhanced bass. 4.3-8 hours of playing time- Built-in 1200MAH battery, can play for 3-8 hours in a row, let you enjoy a good mood every day. [Specification] Interface type:USB Battery capacity:1200MAH with protection board Frequency response range:100HZ-20KHZ Output power:5W Signal to noise ratio:75dB Power supply mode:Built-in battery Channel:2 Play time:3-8H Extended storage:32GB Bluetooth protocol:5.0 Effective distance:20 meters barrier-free Shell material:plastic Support format:TF card Appearance size:8cm*13.5cm*6.5cm Product weight:0.035(KG)