Edu-Toys Leonardo Da Vinci Ship Cannon with Shield

Description Distinguishes between metal and non-metal (copper, gold, silver, aluminum, etc.) Tone and 5 LEDs indicating metal and non-metal intensity. Knob for sensor sensitivity adjustment Knob for adjustment of non-metal discrimination One stereo output plug for connecting to earphone Instruction manual WARNING CHOKING HAJARD-Small Parts NOT FOR CHILDREN UNDER 3 YEARS.; From the Manufacturer; Treasure Hunter Metal Detector - Features: Distinguishes between Metal and Non-Metal (Copper, Gold, Silver, Aluminum Etc.), Tone and 5 LEDs Indicating Metal and Non-metal strength of signal, Knob For Sensor Sensitivity Adjustment, Knob For Adjustment of Non-metal Discrimination, One Stereo Output Plug For Connecting To Earphone. Adjusts from 37" to 49" long.