I am selling this item because I am repurchasing the receiver and set. I intended to use it, so I have opened the package and charged it. I think you can consider it as almost new. The DJI Mic Mini Transmitter is a compact, high-quality wireless microphone. Recommended uses for the product: Audio recording, streaming, video production Brand: DJI Model Name: TX: DMMT01 Charging Dock: DMMD01 Connectivity Technology: See instruction manual Connector Type: USB terminal Features: Noise reduction 【Small but Powerful】 - The DJI Mic Mini transmitter is small and weighs only 10g [1]. It is comfortable to wear and has a discreet design that doesn't detract from your appearance even when wearing the microphone. 【Rich sound down to the details】 - The Mic Mini supports omnidirectional audio recording. It can record rich audio even from multiple sound sources. 【All you need is one transmitter】 - One transmitter provides up to 8 hours of operation [6], giving creators plenty of time for interviews, vlogging, concerts, and more. 【Powerful Noise Cancellation】 - Equipped with two noise cancellation levels: a basic level ideal for quiet indoor environments, and a strong level that effectively achieves clear audio recording even in noisy environments. 【Always reliable audio quality】 - The DJI Mic Mini has a function that automatically limits the volume when the audio input is too loud, preventing clipping and ensuring reliable audio quality in any setting. ▪️Instant purchase is OK. ▪️We strive for prompt responses. ▪️Please feel free to ask any questions. ▪️We ship as quickly as possible. ※Please note that there may be some errors due to amateur flat measurements. ※The color may differ slightly depending on the lighting and the device you are using. ※We do not accept returns for different sizes or if the item is not what you expected, so please make sure before you buy. Thank you for viewing.