The package includes an adapter, a wire microphone (10m), and a windproof cotton. The product features a size of 13.50X2.50X2.50cm, made of metal material in black color, and requires an AA battery (not included). It has a battery capacity of 500MA and an input voltage of 1.5v. The wired microphone is made of solid metal materials, shockproof, and durable. It can be used with musical instruments such as erhu and saxophone. The product is professional, affordable, and multifunctional. The wired loudspeaker has a lavalier design for better microphone positioning and noise reduction. It provides a comfortable experience with no noise or whistling. The collar mic with wire is practical and convenient for daily use.