Tascam FR-AV4; 4-channel audio recorder; dual A/D converters with 133dB dynamic range; designed for film, TV, and content production; records six tracks (four individual tracks + stereo mix) in 32-bit float resolution; Ultra-HDDA preamps with EIN -127dBu; integrated mixer for routing up to 4 inputs to 2 outputs; integrated timecode generator with HDMI, USB, and TC sync; wireless timecode synchronization with Atomos products (Bluetooth adapter Tascam AK-BT2 required); Bluetooth audio monitoring via Tascam Recorder Connect app; USB-C audio interface (6 in / 2 out, 24/32-bit float); switchable sound processing (EQ, Limiter, Noise Gate); Ambisonic support (AmbiX, FuMa); phantom power (24V / 48V); 4x combo mic/line inputs (XLR/jack, balanced); 1x stereo line input (3.5mm jack, unbalanced); 1x line output (3.5mm jack); 1x stereo headphone output with level control (3.5mm jack); HDMI 2.1 with 4K/8K pass-through; 1x USB-C port; 1x SD card slot; recording media: SD/SDHC/SDXC (up to 512GB); recording formats: WAV (BWF, 24/32-bit float, 48/96/192kHz), MP3 (48kHz, 128–320kbit/s); 1.9" touchscreen and jog wheel; power supply via 4x AA batteries, USB-C, or AC adapter (PS-P520U); dimensions (W x H x D): 184 x 42 x 130mm; weight (including batteries): 756g