White's Electronics White's TRX Bullseye Waterproof Pin-Pointer with Holster and 8 inch Co, Black White's Bullseye TRX pinpointer with holster and 8 inch Coin probe - waterproof to 10 feet. Display 68 certified 36 khz operating frequency doesn't interfere with any other metal detector Audio and/or vibrate alert automatic power off dual battery operation (2-Aa or 1-9v) full two-year warranty Holster (up to 3 belt) Lanyard attachment loop on TRX and holster LED light lost pinpointer alarm overload indicator Replaceable shell Ruler with inch markings simple one-button operation target ratcheting Batteries: 2-Aa or 1-9v Battery life: 20 Height: 10" Frequency: 12 kHz