USDA Forest Service’s Pacific Northwest Research Station requires 523 brand-new, turnkey small autonomous bio-acoustic recorders plus shipping to support passive acoustic monitoring under the Northwest Forest Plan Effectiveness Monitoring Program. The recorders must be exceptionally compact (max 6” x 8” x 3”), weigh less than 1.5 lbs with batteries, be fully weatherproof with internal humidity control, and provide long battery life using rechargeable 18650 Li-ion batteries with at least 1,200 hours of continuous or scheduled operation. Required capabilities include an SDXC slot up to 1TB, 8,000–96,000 Hz acoustic capture with at least 75dB SNR and anti-aliasing, Bluetooth programming via mobile app, smart seasonal scheduling, and a minimum two-year comprehensive warranty. Delivery is FOB Destination to the PNW Forestry Sciences Laboratory, 3200 SW Jefferson Way, Corvallis, OR 97331, within a maximum of 60 days after receipt of order, with shorter timelines evaluated more favorably. Equivalent products matching the baseline performance parameters will be considered.