Smart Bluetooth Wireless Speaker and LED light with multi-functions.As a venture company located in a university,we have developed unique electronic devices that comfort, entertain and protect people outdoors or indoors,based on our accumulated technolgy and experience in the electronic world.aa. Smart Bluetooth Wireless Speaker and LED light Combined Device Model : AYOND-O2 (multi-functions)- Wireless LED Light- Bluetooth Wireless Speaker- Mars Light in case of car accident - Rechargeable Battery- Insect Repellent bb. USB with lighting functionModel : AYOND- U1cc.Mini Lantern -Led:3w power led (About 80Lm, White 6,500k) -Battery: CR 123A (Lithium battery) - Material: Aluminum , Polycarbonate - Color: Black,Silver, Gold Anodize - Run time : 30~40 hours -Size: 22 mm(diameter) x 52 mm (height) -Weight: 36 gram (including battery)