ไมค์ลอยคู่ SHURE BLX288A SM58 M19 (KA.2)

• Audio Input Level
  gain 0dB -20 dBV maximum 
  gain -10dB -10 dBV maximum
• Gain Adjustment Range
  10 dB
• RF Transmitter Output
  10 mW, typical
  varies by region
• Housing
  Molded ABS
• Power Requirements
  2 LR6 AA batteries, 1.5 V, alkaline
• Battery Life
  up to 14 hours (alkaline)

BLX88 Dual Channel Receiver

• Output Impedance
  XLR connector: 200 Ω
  6.35 mm (1/4") connector: 50 Ω
• Audio Output Level
  Ref. ±33 kHz deviation with 1 kHz tone
  XLR connector: –27 dBV (into 100 kΩ load) 
  6.35 mm (1/4") connector: –13 dBV (into 100 kΩ load)
• RF Sensitivity
  -105 dBm for 12 dB SINAD, typical
• Image Rejection
  >50  dB, typical
• Housing
  Molded ABS
• Power Requirements
  12–15 V DC @ 160 mA (BLX88, 320 mA), supplied by external power supply (tip positive)