[360°Hi-Fi Stereo Sound and Extra Bass]: This Bluetooth speaker delivers excellent 3D HD stereo sound with 30W total output power, which allows for unique enhanced bass. An advanced Digital Signal Processor ensures pounding bass and zero distortion at any volume. You will like HEYSONGs true 360°stereo sound bluetooth speakers! [Ultra-Portable with Loud Sound]: HEYSONG Portable speaker has a built-in 4000 mAh rechargeable lithium battery with powerful sound. Designed as bluetooth speaker portable wireless, the speaker has 1000 minutes of playtime, long enough for any occasion. The speakers include a lanyard so you can hang the portable speaker anywhere you like, so it's perfect for outdoor/ indoor activities. [Beat-Dynamic Light Show]: HEYSONG wireless LED Bluetooth speakers are not only a speaker but also a unique night theme light. RGB light color changes with music.The stronger the sense of rhythm, the stronger the beating of the radiator. It delivers impressive sound when you're ga