Retekess TR506 Wireless FM Transmitter and TR104 Headphone Receiver for Interpretation and Training

SKU: F9231A-F9232A

Regular price $300.00

Four-level output power adjustable

Mono/stereo adjustable

PLL technology

Button lock function

Built-in high-capacity lithium battery

The LCD screen is still clear in the dark

This wireless guide system includes 1 transmitter and 8/12/24 receivers. The narrator uses the transmitter to output sound, and the audience listens to the audio through the headphone receiver. So the audience neither misses any information nor the presentation disturbs others.

audio input

TR506 wireless FM transmitter has an audio input jack and microphone input jack. The AUX jack can be connected to various portable audio and video players such as Discman, MD, MP3, etc. The listeners can listen to this music in real-time through the headphone receiver.

Rechargeable lithium battery

The transmitter has a built-in 1000mAh lithium battery, which takes about 5 hours to fully charge. At the lowest transmit power, it can work continuously for 16 hours.

Headphone receiver

The TR104FM earphone receiver has foam earmuffs, which can effectively reduce the interference of surrounding noises. Plus, the adjustable headband allows everyone to wear it comfortably.

Button lock function

After the wireless FM transmitter has the lock function turned on, you can do any physical activity at will without worrying about accidentally touching the keys.

Launch distance

The transmission distance of the wireless guide system varies according to the output power, and it can reach 400 meters in the open area under the highest transmission power.


Simultaneous interpretation, church or school broadcasts, command training

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TR506 FM Transmitter

Power supply

BL-5C Li-ion Battery 3.7V 1000mAh

Frequency stability


Stepped - Frequency


Charging time

About 5 hours

charging voltage


Stray and Harmonic Radiation


Audio distortion


Input level

≤-15 dBV

Modulation frequency offset



≥60 dB

Host Size

82*60*22mm (No salient part)

Machine weight

About 67 grams (without batteries)

FM antenna

Anti-screw direction

Car charger

With IC protection

Lavaliere microphone

Stereo,gold plating,1.2meters with shielding function

Audio cable

3.5 male to male

USB cable

USB to T port (MINI)

TR104 FM Radio Headphone

FM frequency






Output power


Working current


Shutdown and standby current


Power supply

2 x AAA battery (not included)



FM frequency


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