The new : Batbox III D ... ...leader in the field of heterodyne detectors The new Batbox III D is a heterodyne bat detector, which incorporates the latest technology, whilst retaining all the best qualities of its predecessor. The easy-to-read digital display, single-handed operation, high sensitivity and robustness make it an essential field tool for the professional or amateur batworker. A high quality, low noise ultrasonic bat detector used in universities, conservation and environment departments and by thousands of amateur naturalists throughout the world. - Tunable range: 19kHz to 125 kHz - Bandwidth: > 16kHz - Record out (3.5 mm socket): line level (mono) - Headphone out (3.5 mm socket): to both channels (8 -16 ohm) - Display: 12.5 mm digital LCD with back-light - Display Accuracy: 1 digit - Microphone: broadband electret condenser - Speaker: weatherproof 35mm - Amplifier: 350mW (max) - Power supply: 1 x 9v PP3 - Quiescent current: 24mA - Dimensions: 125 x 69 x 32 (mm) - Weight: 131gm (without battery) A full user guide comes with the new Batbox III D and is protected by a fitted soft nylon micro-weave carry case with zip and belt loop plus a high-strength polyester woven cord wrist strap.