Features: Small in size and lightweight Super bright LED strobe On board 66 Channel GPS Self-test and GPS test features Typical Performance of 30 hours Non-Hazmat battery Velcro Attachment Strap Buoyant, but not intended for operation in water, intended operational environments include on ground and above ground including held in hand, but in all cases, the beacon must be facing skyward with the antenna perpendicular Made in the U.S.A.