Retekess TR508 Wireless FM Transmitter PR13 FM Radio Receiver for Silent Conference

Transmission Channel

To meet your different transmission channel requirements, the wireless FM transmitter can be arbitrarily set from 76MHz to 110MHz, 86MHz to 90MHz, 95MHz to 108MHz, 87MHz to 108MHz.

PLL Technology

TR508 has phase locked loop digital technology, which can effectively reduce noise, restore the original sound and receive clear sound.

Audio Input

The FM transmitter supports microphone input and audio device input. Connect the transmitter with an AUX cable and audio devices such as cell phones, computers and MP3s, and listeners will be able to hear stereo music through the FM radio receiver.

Quick pairing

Set the transmitter frequency first, then set the receiver to the same frequency for successful pairing. Simple operation helps you improve efficiency.

Transmission distance

In the open outdoors, FM transmitter up to 300 meters, your listeners in the range of 300 meters from the transmitter can listen clearly.

24/7 uninterrupted operation

By connecting the FM transmitter and power supply with the power cable, the FM transmitting radio can achieve uninterrupted operation.

TR508 Wireless FM Transmitter Specification

Working: voltage11~13V DC (Rated voltage 12 v)

Working current<300mA

Frequency stability:±10PPM

Frequency Step:100KHZ

The operating temperature of the environment -10℃~50℃

output impedance: 50Ω

Harmonic and noise radiation: ≤－60dB

Audio distortion: <0.30%

Frequency response: 20HZ~15000HZ

Preemphasis delay: 50us

degree of separation:≥40 dB

input level:≤-10 dBV

Modulation frequency deviation: ±75KHZ

SNR(Signal to Noise Ratio)≥65 dB

Machine Size:113mm;W:88mm;H:39mm

Machine weight: 269g

PR13 FM Radio Receiver Specification

Sensitivity:<3.5uV
Signal to noise ratio: 45db
Stereo separation: 32dB
Power supply: 2 x AAA batteries (not included)
Earphone jack: 3.5mm
Tuning increase: 0.1MHz
Built-in speaker: No
Dimension:3.6 x 2.1x 0.6in
Weight: 40g / 0.09lb