Retro Bluetooth Speaker Mini Wireless Speaker With Riching Bass In Clear Stereo Sound Portable Speaker Support FM, USB Drive, SD Card, AUX Features: Strong Compatibility: Bluetooth 5.0 solution provides more efficient and stable wireless transmission with strong anti-interference which is compatible with Android and iOS devices. The retro bluetooth speaker also supports SD Card and USB disk. Good Sound Quality: Vintage bluetooth speaker produces 3W great stereo sound, which tries to guide you to a more fruitful liver and music world. A digital signal processor with DYNAMICing range control ensures that high volumes are distortion-free and low LEVELing produce Riching bass. Long battery life: The mini Bluetooth speaker has a long playing time, which can play 6 hours of battery life to play music on a single charge and more than 72 hours of standby time with rechargeable lithium battery Built-in 500mAh. Easy to Carry: The cute bluetooth speaker is designed in a suitable size that you can easily carry it from a party to the PARKings, from your own backyard to high Mounts. Due to its suitable size, it fits in your bag, it fits in your pocket. A wonderful gift: The small wireless speaker is a wonderful gift, it is a multifunctional and practical speaker that never fails to satisfy the recipients. Product Description: Size: 11.5x7.8cm/4.5x3.1inch Bluetooth version: 5.0 Connection range: 12m Playback duration: about 6 hours Horn power: 3W Charging time: about 1.5 hours Battery capacity: 500mAh Input voltage: DC5v/1A ISignal to noise ratio: >85db Distortion rate: