The ION Audio Rock On speaker pair blends in perfectly with your yard's landscape and can stream music from any Bluetooth® music player, including iPad, iPhone, iPod and Android devices, making it the perfect way to enjoy your music outdoors. These 2 speakers are each enclosed in a durable, IPX4 weather-resistant housing that protects against splashing water from any angle. Each speaker features a long-lasting rechargeable battery that lasts up to 48 hours per charge, meaning your backyard parties will never go without music.