The Tesoro Compadre was designed with the idea that less is more. This modest machine can do a lot of the same things that its bigger brothers can do. It works great for coin hunting, competition hunting and relic hunting, but it does it without any excess knobs. Switch on the detector and you're working in a silent search, motion all metal mode. The farther you turn the knob, the more discrimination you can bring to bear on those trashy sites. The Compadre now comes standard with a 5.75" round concentric coil. The depth is equivalent to the original 7" concentric, plus the new coil reduces the likelihood of target masking in extremely trashy ground. It also gives you the ability to get into and around natural obstacles like bushes, fences, and playground equipment. The Compadre has it all. One knob simplicity for the beginner and high gain circuitry and the famous Tesoro ED-180 discrimination for the advanced user. If one detector can do all of this, maybe less is more. SPECIFICATIONS Operating Frequency............. 12 kHz Searchcoil Type..................... Round concentric, hardwired Searchcoil Size..................... 5.75" Cable Length......................... Approx. 3? Audio Frequency................... Approx. 630 Hz Audio Output.......................... 1½? speaker & headphone jack Headphone Compatibility....... ¼? stereo plug Weight (may vary slightly)....... 2.2 lbs. Battery Requirement............... One 9 volt DC (alkaline) Battery Life (typical)................ 10 to 25 hours Optimum Temp. Range.......... 30° to 100° F Optimum Humidity.................. 0 to 75% R.H. Operating Modes................... Silent Search Discriminate