Specifications:

• Dimensions: Length Width 1.3CM X 3.5CM X height 0.9cm (including audio seat height and buttons)
• Operating voltage: DC 3V-6V
• Operating Current: about 35MA
• Operating frequency range :76-108 Mhz
• Frequency adjustment: adjustment buttons
• Antenna Connection: You can lead a separate outside, the default audio output cable is connected to the Reference

• Transmission Distance: 3.6V voltage wire antenna 75 cm - straightened using an ordinary phone radio reception, outdoor open spaceTest distance of about 100 meters

• S1: press S1, frequency reduction 0.1Mhz (long press S1 button for 5 seconds to restore the default values: Frequency 100Mhz, spirit Acuity 6)

• S2: press S2, frequency plus 0.1Mhz
• S3: press S3, reducing the frequency of 1Mhz
• S4: press S4, plus frequency 1Mhz
• S5: Input signal sensitivity control (Grades 1-8)