The Humvee Portable Solar Powered Bluetooth Speaker delivers powerful sound and long-lasting battery life, perfect for outdoor escapades or everyday listening. • It can be paired with all types of devices that use Bluetooth technology, with a transmission distance of up to 10 m. • It's waterproof, dustproof, and shockproof. • Built-in high power solar panel (5 v/200 mA) with high conversion rate under strong-sunlight. • It's the perfect gift for Father's Day, Christmas, or any special occasion.