TAKSTAR TS-K201 Portable Wireless Microphone

 Frequency Range: 630-698MHz
• (frequency band) Channel Quantity: mono Frequency Band Quantity: 50
• FM Width: 12.5MHz
• Frequency Band Interval: 250KHz Modulation: FM
• Mute: wave guid/digital  ID
• Frequency Response: 120Hz-17KHz
                                      (1KHz reference -3dB) 
• Frequency Stability: ±7KHz
• S/N Ratio: ≥95dB
• Dynamic Range: ≥90dB
• Distortion: ＜1%(at 1KHz)
• Operation Range: approximate 25m(open area)

Transmitter (microphone) 
• Cartridge: dynamic 
• Polar Pattern: unidirectional 
• Sensitivity: -55±3dB dB
                   (0db=1V/Pa/m at 1kHz) 
• Gain Adjustment: -18dB - 21dB 
• Transmitter Power: ≤10mW 
• Power Supply: 2 AA batteries 
• Dimension: Φ36.5mmX245mm 
• Net Weight: approximate 237g

Receiver
• Audio Output: Φ3.5mm line out
• Battery: Li-ion battery
• Battery Specification: 3.7V/400mAh
• Charging: USB 5V/200mA (max battery charging current)
• Charging Time: approximate 2h
• Operation Time: approximate 5h
• Dimension: 80.5mmX28mmX15.5mm(L X W X H)
• Net Weight: approximate 22g