Specifications

• 
  Transmitting frequency of F1 171.105MHz-F2 171.905Mhz (Transmitter)
• FM band (Transmitter)
• +/-2KHz maximum deviation (Transmitter)
• DC 3V power (Transmitter)
• Uses 2 AA batteries (not included) (Transmitter)
• Power switch (Transmitter)
• Channel selector switch (Transmitter)
• LED power indicator (Transmitter)
• Receiving frequency of F1 171.105MHz-F2 171.905Mhz (Receiver)
• Sensitivity of 10dB uV for 20dB S/N (Receiver)
• DC 3V power (Receiver)
• Uses 3 AA (not included) (Receiver)
• Power switch (Receiver)
• Channel selector switch (Receiver)
• LED power on (Receiver)
• Size 31/4″ x 2 1/2″ x 1″