WHAT’S IN THE BOX  F2 or F2-BT Field Recorder  LMF-2 Lavalier Microphone  3 - WSL-1 Windscreen  MCL-1 Mic Clip  2 - AAA Batteries  WaveLab Cast Software  F2/F2-BT Operation Manual    F2 FEATURES          Light and compact audio recorder     32-Bit Float recording for full dynamic range and clip free recording     No gain adjustment necessary     Records 44.1kHz/32-bit float or 48kHz/32-bit float audio files     Rec Hold function to avoid accidental operation of buttons     1/8" Mic In mini phone jack with Plug-in power (2.5V)      Stereo & 8539;" Phone/Line Output jack with dedicated volume control     80 Hz low cut filter     High precision internal clock to avoid audio and video syncing issues     Wireless timecode synchronization (F2-BT model only)*     Records directly to micro SD and SDHC cards up to 512 GB     USB-C for connection to F2 Editor for settings     Built-in Bluetooth for connection to the F2 Control app for settings adjustment and remote transport control (F2-BT model only)     Runs on only 2 standard AAA alkaline, Lithium, or NiMH rechargeable batteries, or AC adapter (AD-17)     Up to 15 hours of operation (14 hours on the F2-BT) with two AAA alkaline batteries        *F2-BT connection to UltraSync BLUE device by Timecode Systems is required.                    SPECS    F2/F2-BT    INPUT                   CONNECTOR:       3.5 mm stereo mini (with screw lock) Supports plug-in power (2.5 V)                 INPUT GAIN:       None (dual AD conversion system)                 INPUT IMPEDANCE:       2 kΩ or more                 MAXIMUM INPUT LEVEL:       −5.5 dBu                     OUTPUT                   CONNECTOR:       3.5 mm stereo mini (with screw lock)                 MAXIMUM OUTPUT LEVEL:       20 mW + 20 mW (into 32Ω load)                     RECORDING MEDIA                   CARDS COMPATIBLE WITH MICROSD/MICROSDHC/MICROSDXC SPECIFICATIONS  (CLASS 4 OR HIGHER, 512 GB MAXIMUM)                     RECORDING FORMAT                   WAV:       44.