Superior Sound Quality: The Bluetooth speaker with dual high-performance drivers and unique enhanced bass. The treble is clean and defined, the bass is powerful. You can enjoy the wonderful music, whether indoors or outdoors. Lasts a Long Time: Built-in high powers up to 12 hours playtime. Small, but such powerful Bluetooth speakers. Support the USB, micro SD card (32GB max), aux playback. Advanced Bluetooth 5.0: The Blue tooth 5.0 transmitted by A2DP technology, has lower power consumption than Bluetooth 4.2 but with the faster transmission, stronger anti-interference ability, and a more stable signal without any delay. Built-in Mic: The Bluetooth speaker built-in microphone design and not only provides hands-free and skip function with higher stereo sound quality. Portable Speaker: Just 0.66 lb Lightweight, very durability and compact size. Classic one-piece black design, smooth and supple appearance gives you a great visual experience. It's a great gift for teenagers, kids, family, and friends.