Platform Compatibility: Compatible with both open-source UAV or DJI Matrice series Gimbal: 2axis (brushless motors) Material: Aluminum alloy Effective Broadcasting Distance: 500m Communication Method: 4G LTE or Analog Max Sound Pressure: 124dB@1m APP: Support Android 5.0 & above Speaker Modes: Real time / Recording / Audio file / Text to speech Weight: about 690g Mounting Mode: Detachable