Brand new, unopened. LarkMax with a lapel microphone. I purchased this as a spare and have been storing it, but I'm selling it because I've switched to different equipment. Here's a summary of the product from the manufacturer: "Reproduces studio-like sound quality" LarkMax wireless microphone technical specifications: 48Khz/24Bit, Signal-to-Noise Ratio (SNR) ≥70dB. Minimizes white noise. The maximum sound pressure level (SPL) is 128dB, preventing sound distortion during shooting/recording. "ENC Noise Canceling Technology" This lapel microphone utilizes advanced ENC (Environmental Noise Cancellation) technology to detect and minimize surrounding noise. This ensures clear, distortion-free audio quality even in noisy recording environments. You can easily switch the ENC mode on or off from the transmitter or receiver. This is a user-friendly feature for beginners. "Back up 14 hours of recording files" The LARK MAX transmitter also functions as a standalone recorder with built-in 8GB storage. It can record uncompressed, lossless WAV files for up to 14 hours. Internal recording files are stored on the transmitter. Turning on Auto Record mode on the receiver enables the internal recording function of the transmitter for added audio security, so you won't miss important moments. "Wide Compatibility/Audio Input Modes/EQ Modes" Compatible with smartphones (all Android & iPhone models), cameras, and computers with the included cables. No external audio device is needed when connecting to a computer with the UAC function. Three audio input modes are supported: Mono mode, Stereo, and Safety Track (ST). There are also three EQ modes: Hi-Fi, Low Cut, and Vocal Boost. "22-hour battery life" The LARK MAX comes with a compact charging case, allowing for up to 7.5 hours of continuous recording with the wireless lapel microphone fully charged. When used with the charging case, you can charge the microphone even when you're on the go without an outlet, allowing for up to 22 hours of recording. In addition, the receiver also allows for 9 hours of recording on a single charge, and the receiver can record while charging. "Includes 2 external lapel microphones"