Wireless Speaker: Supports mobile phones to connect to 2 speakers simultaneously, creating stereo and Hi-Fi sound quality to let you experience true 360-degree surround sound (TIPS: Turn on two speakers, press and hold the "hands-free" button for 2 seconds, the blue indicator light will flash first and then stay on for 6-8 seconds to indicate a successful connection). Bluetooth 5.0: Bluetooth 5.0 technology provides a more stable connection and supports a range of 10 meters, compatible with smartphones and all Bluetooth devices. Amazing 3D Hi-Fi Bass: The wireless Bluetooth speaker features two built-in 3W speakers that produce impressive 3D stereo sound, while the thicker diaphragm enhances the bass. Durable and Portable: The Bluetooth speaker has a built-in 1500 mAh battery that supports 12 hours of playtime. Its extremely small size and portable design make it an ideal choice for outdoor travel. Versatile: Not only supports hands-free calls but also FM radio. The audio cable can be connected to computers and cars, and it can be connected to TF cards and USB to play music.