Features: This set includes a transmitter with clip, a receiver, a lavalier microphone, an USB cable and a user manual. Adopting dual-channel UHF (ultra-high frequency) band, the wireless microphone set has the advantage of strong anti-interference. Extremely high pick up sensitivity and excellent tone quality make your speech or singing more clear. Rechargeable and cordless, both the transmitter and receiver is powered by built-in lithium battery. Mini size and portable, easy to carry. 30m long distance connection between transmitter and receiver, the set is suitable for business meeting, speeches, teaching, live performance, etc. The receive can connect with different speaker equipment to realize wireless amplification, such as speaker, amplifier, audio equipment, etc. Note: Size and color may be slightly different due to manual measurement and different light conditions. Thanks for understanding.