Features: Wireless microphone headset with LED Display,it can be clearly displayed the frequency,volume and battery status. Up to 164 feet transmission ranges in an open areas. Built-in condenser microphone, high sensitivity pickup and prevent howling, provide you with quality clear sound quality. Adopt latest UHF wireless technology provides a strong signal , reducing the possibility of interference from wireless or WiFi. Enhances your presentations and conferences with this wireless microphone headset, delivering clear sound quality for effective communications. Stay connected and enjoy uninterrupted sound transmission with the advanced technology of this rechargeable headset. Designed for trainers, fitness instructors, public speakers, and stage performers, this headset provides reliable sound amplification for various professionals. Specifications: Material:Plastic Working Voltage:3.5V-5.5V Current: ≤75mA(Most) Charging time:<4 hours Usage time: about 6 hours Frequency: 600-900Mhz RFpower: 10dBm Transmission distance: Approx.50m/164ft (open distance) Acceptance sensitivity: -88dBm Sampling frequency: 48KS/s Signal to noise ratio: ≥ 65dB Wireless Freedom: Adopting 2.4G wireless technology, there is no need to be limited by cable length, allowing users to enjoy greater freedom during use. Wireless Transmission Distance: 50m/164.04ft Colour:Black Package Includes: 1x Wireless Receiver 2x Wireless Transmitter 1x6.35mm to 3.5mm Adapter 1xUSB Charging Cable 1xManual note: Please allow 1-2cm errors due to manual measurement,please make sure that you do not mind before you order. Due to the difference between different monitors, the picture may not reflect the actual color of the item.