Gunfire also got product video presentations done in the Spanish language and in this video it's about the Specna Arms MTU Tracer Unit... "A silencer filled with electronics from a well-known manufacturer of airsoft replicas enters the market. Efficient plotter, which, thanks to the additional LEDs, will take your ASG game to a new level. Thanks to the imitation of the flash, the discreet accessory makes the airsoft replica closer to an original firearm. It is also a very efficient plotter that will fully illuminate bbs shot with ROF up to 35 bbs / s. It charges through a micro-USB connector. Thanks to its efficient battery, it is enough to illuminate up to 30,000 bbs on a single charge. However, when you need power quickly, you can use the fast charge function: just 5 minutes of charging is enough to work for about 1000 shots."