SKYDROID LS 01 Mini Walkie Talkie Sky Speaker Wireless Megaphone Laudspeakers Universal for RC DroneSpecifications Brand SKYDROIDItem Name Mini Wireless MegaphoneColor As ShownCommunication Distance 2 3kmMegaphone Impedance 2QProduct Weight 66g Product Size 60 60 27mmPower 5WFrequency 433MHzBuilt in Battery 4 2V Lipo Battery Charging Voltage DC 5VCharging Time 2hFeatures Intelligent noise reduction Automatic noise reduction clear sound amplification High power speaker with a volume of up to 120 decibels Working at heights makes it more convenient to patrol and speak Small and light With its compact size the megaphone weighs only 66g even toy aircraft can carry the product Long battery life Built in large capacity lithium battery fully charged in 2 hours can work continuously for 4 hours Ultra long distance transmission The communication distance is up to 2KM making high altitude sound amplification easier Independent communication Not limited by the communication of the aircraft built in polymer lithium battery 10 hours standby Note Only the Megaphone NOT Included the RC drone Package Included 1 x Wireless Megaphone