Divoom Outdoor2 Portable Bluetooth Wireless Rugged Speaker (Green) NEW* An industry leading 6 drivers design, all fine-tuned by the Divoom audio engineer team. NEW* Unique acoustic technology sends sound waves of true 15W in every direction through 6 internal speaker drivers NEW* Equipped with the advance NFC pairing, built-in microphone, and a 3600mAh Li-on rechargeable battery. The Voombox-Outdoor is compatible with any iOS devices (iphone3/3s/4/4s/5/5s/6/6s plus, iPad 2/3/4, ipad air/mini1/2/pro; and most Android devices, including: Google Nexus 4/5/6/7/9/10, HTC One, LG, Samsung Galaxy Note and others. Award winning weatherized IPX 44 Rugged Design, the Voombox-Outdoor is built to last. It's the perfect music companion for your every journey. Improved USB charger problem. All speakers purchased through the Divoom's official Amazon store (Divoom Official) come with the one year limited warranty.