Features: - Equipped with full range vocal unit and high performance 5W speaker produces more rich immersive sound for you. - Bluetooth 4.1 version, fully compatible with 99% Bluetooth devices, faster connection and stable transmission. - NFC function, just place close to the speaker, it could build connection with your phone. (Make sure your phone support NFC) - IPX5 waterproof, protects the speaker from the damages caused by splash, moist, sweat, etc., prolong the using life. - This speaker support TF card mode, plug then play, compatible with various music format, such as, MP3, WAV, and so on. - Portable size with leather stripe, fabric design, it could be a wonderful company while camping, hiking, cycling.