Hollyland Lark M1 Duo wireless system includes two transmitters and one receiver that connects to cameras or compatible devices via a 3.5 mm cable. The system offers up to 200 meters of range and records audio at 16-bit / 48 kHz. One-button noise reduction enables clear voice recording in challenging environments. Each component operates up to 8 hours on battery power, and the charging case extends total runtime. Included: receiver, transmitters – 2 pcs, windscreens – 2 pcs, TRS-TRS 3.5 mm cable, TRS-TRRS 3.5 mm cable, charging case, USB-A to USB-C cable.