Brand new. It is suitable for speakers, teachers, presenters and lecturers. It comes with clip, easy to carry with and convenience. Bring you convenience when you are using it in the situation of teaching, conference, monitoring etc. Portable and lightweight. Outstanding sound and stable performance. Perfect for classroom, teaching, meeting, conference and sales demonstrations. Specifications. Color: Black. Size: As shown in the picture. Modulation: FM. Frequency Range: FM 80 to 12500 Hz. Output Impedance: 600 ohm. Operating Voltage: 9V for transmitter, 1.5V for receiver. Effective Distance: 15 m. Transmitter powered by a 9V battery (not included). Receiver powered by an AA battery (not included). What is in the box. 1 x Transmitter. 1 x Receiver. 1 x Clip-on Microphone. 1 x Manual. Original packing removed, environmental friendly packing applied