1.Exclusive patented: with our own utility patent and design patent. 2.Ultra Solar charging: solar charging in 10 minutes, it lasts 30 min. music playing.(Field testing result, may with small different due to different environment like sunshine,area,season etc.) 3. Ultra long lasting: 1200mAh battery continuous playing for 12 hours (lab testing result, may with small difference due to different playing circuitance) 4.IPX5 waterproof,dustproof and shockproof. Rubber outer sheath with a sealable lid giving access to input/output ports. 5. LED light. With different mode-- lighting,burst flashing,SOS flashing . 6.Super high sound quality. 7. Very suitable for outdoors sport like cycling,mountaineering,hiking etc. 2 pcs of Velcro strap and a carabiner with the product makes you to fix the speaker to your bike or any objects easily.