Use the guide for operation and frequency adjustment.
The supplied video demonstrates the microphone transmitter and reception setup. The included kit contents are identified in the photographs and delivery list on this page.
One transmitter and the included receiver, shown with accessories.
Matched FM transmitter + receiver set
Spy-IL8 FM Spy Bug & Receiver Kit — Up to 700 m Range
One matched kit. Live audio at 77 MHz.
A miniature microphone transmitter and an extended-band FM receiver, supplied tuned together. Listen live with a published range of up to 700 m in open areas, depending on conditions.
$70.00 USD
Receiver includedMatched at 77 MHz2 × CR2032 included
The receiver is part of this kit. Add two AAA batteries for the receiver — these are not included. Both devices arrive tuned together to 77.0 MHz.
Private preview. Payment is not connected.
US shipping · $9.00 per set
Dispatch from Hollywood, Florida in 2–3 business days after payment confirmation. Estimated US transit after dispatch: 3–5 business days.
A complete signal path
Transmit here.
Listen on the included radio.
Microphone → FM transmission → supplied receiver
01
Power both devices.
Use the two included CR2032 cells for the transmitter. Fit two AAA cells, purchased separately, in the receiver.
02
Keep the matched setting.
The set is supplied tuned together at 77 MHz. Select FM on the receiver.
03
Listen live.
Position the devices and receiver antenna for reception, then adjust the radio volume.
Up to 700 m (about 2,297 ft / 0.43 miles) is the specified maximum in open areas with a high-quality receiver. Buildings, interference, placement and antennas affect actual range. The city illustration explains the signal path and is not a guarantee of reception through buildings.
Matched before delivery
The microphone.
The radio.
One set.
Spy-IL8 pairs a miniature FM microphone transmitter with an extended-band radio receiver. Both are supplied tuned together to 77.0 MHz, so you do not need to source a separate receiver.
The supplied frequency sits below the usual US FM broadcast band. The included radio can receive it because its FM coverage starts at 63 MHz. Local interference can still affect reception.
This kit is for live audio listening. It has no internal audio recording function. The receiver listens to the microphone signal in real time.
Receiver includedMatched transmitter and radio
77.0 MHzSupplied operating frequency
Up to 700 mOpen-area maximum · conditions apply
2 × CR2032Transmitter batteries included
Original supplied footage
See transmitter setup and tuning.
Original demonstration with sound.
Keep both devices in tune
77 MHz.
Matched from the start.
Extended FM reception.
The supplied receiver covers the kit’s 77 MHz setting. Many ordinary US FM radios start at 88 MHz and cannot receive this frequency.
Retune only within receiver coverage.
The transmitter supports 76–110 MHz adjustment using one button. If you change it, choose a frequency the supplied receiver can receive and retune both devices to match.
At a glance
The details,
clearly laid out.
A matched set with a receiver included.
- Model
- Spy-IL8 · matched FM transmitter and receiver kit
- Audio function
- Live audio transmission; no internal recording
- Supplied frequency
- 77.0 MHz; both devices tuned together
- Published maximum range
- Up to 700 m / approx. 2,297 ft in open areas; conditions dependent
- Transmitter tuning
- 76–110 MHz; single-button adjustment
- Receiver tuning
- Extended FM range beginning at 63 MHz; supplied at 77 MHz
- Receiver in this set
- Included
- Transmitter batteries
- Two CR2032 cells · included
- Receiver batteries
- Two AAA cells · not included
Your delivery
What’s included.
- One miniature FM microphone transmitter
- One extended-band FM radio receiver
- Two CR2032 transmitter batteries
Transmitter and receiver supplied tuned together to 77.0 MHz.
Two AAA receiver batteries are not included. Accessories shown in the original photographs are displayed for reference; the core delivery contents are listed above.
Before you choose
A few useful answers.
Is the receiver included?
Yes. Spy-IL8 is a transmitter and receiver set. You do not need to buy the radio separately.
Are all the batteries included?
The two CR2032 transmitter batteries are included. The receiver needs two AAA cells, which are not included.
Do I need to find the frequency myself?
The pair is supplied tuned together to 77.0 MHz. If you change the transmitter frequency, retune the receiver to match.
Why 77 MHz?
It is below the usual US FM broadcast band. The supplied extended-band receiver supports it. This does not guarantee freedom from interference.
Can I change the transmitter frequency?
Yes, within 76–110 MHz using the tuning button. Stay within frequencies supported by the included receiver.
Does this kit record audio?
No. It is a live audio transmission and reception set.
Is 700 m guaranteed?
No. It is a specified maximum for open areas with a high-quality receiver. Actual range depends on surroundings, interference and placement.
Get your matched kit ready.
Ask Alex about the supplied receiver, batteries or frequency adjustment.