1.Portable:Portable speaker covered in high quality anti-fall waterproof durable plastic material and protection design, No matter where the music should be, bluetooth speakers portable are suitable and ready. 2.HD sound & True Stereo Sound:Bluetooth speaker with dual-driver and bass diaphragm , pumps out crisp treble, detailed mids, and rich bass. During TWS mode, two wireless speakers bluetooth can be paired to form a left and right dual channel stereo system, with 360 true HD sound, enjoy the wonderful music experience that brings you. 3.8-10H Playtime & Hands-Free Calling:Speakers wireless bluetooth built-in 2600mAh rechargeable Li-ion battery guarantees up to 10 hours non-stop playtime at 50% volume, it takes only 3 hours to charge in one charge. Bluetooth speakers portable built in mic with integrated noise and echo cancellation technology lets you take hands-free calls at any time. 4.Bluetooth 5.0 & Multi Function Mode:Speaker quipped Advanced Bluetooth 5.0 technology ensures your devices maintain a strong, stable connection up to 20m , the speaker automatically reconnects to the last devidces used. The Bluetooth speaker support the TF card, USB, FM radio and be used as a power bank, colorful choices which do the really convenience for you.