Sound quality characteristics * The sound is pure and powerful. * Good high frequency transient response, can easily cope with the problems that singing enthusiasts'inactive to high frequency areas. * High frequency has magnetic feeling * Suitable for professional performs, KTV singing, and high-end speech circumstance. Specifications: Model TS-331 Transduction Theory Moving Coil Acoustics Theory PG(Pressure Gradient) Receiver Adapterization Type Super-cardioid Frequency Response 40-18KHz Normal Impedance 600Ω Sensitivity -73±3dB Min Terminal Impedance 1000Ω Connection Port XLR-3 Forward to Back Resistance >20dB Weight 350g Dimension φ47x198mm