Frequently Asked Questions:
Q1. Cannot connect to optical cable and RCA at the same time.
---In three modes (TX/RX/BYPASS), optical is default. In the case of optical fiber insertion, if AUX is connected at the same time, AUX will take precedence, the machine will automatically recognize AUX and display it. But RCA cannot be used with optical fiber at the same time, you need to unplug the unused cable, otherwise both will not work.
Q2. There is audio delay.
---Tested by laboratory equipment that our bluetooth transmitter receiver support low latency.
Q3. There is sound noise.
---It may be that other Bluetooth electronic devices are causing a interference. Please try to turn off other Bluetooth devices or wireless devices.
Q4. Cannot connect to my device.
A: Please check:
1. You have selected the correct mode.
2. your Bluetooth device was in pairing status and that the both devices are within 1m during pairing.
Q5. Connect to TV, doesn't work.
Please check you have set PCM on the TV. In general, you will find the audio mode in the TV settings and click "Settings - Sound - Digital Audio Output - Select "PCM"".
Q6. The connection is unstable and easy to disconnect.
A:
Please initialize the Bluetooth transmitter, and then reconnect again to see whether there is still the same problem.
Transmitter initialization: Long press the Bluetooth identification button to disconnect, then turn off and restart. warm：This dual antenna bluetooth 5.3 transmitter receiver has no battery inside, connect the power supply before use.

Product Description:
Use ifofo bluetooth transmitter and receiver allows you enjoy audio from non bluetooth tv/pc with your wireless headphones or play music from blutooth smartphone or tablet on non-bluetooth car/home stereos. Exclusive dual antenna design make transmit longer and stronger. 3 ports(aux/rca/optical) allows you connect 99% device.

Features:
3 Modes:
Bluetooth Tx Mode - transmit audio to your wireless headphones from your non-bluetooth tv/pc
Bluetooth Rx Mode - stream music from bluetooth cellphone, tablet, laptop to your old non-bluetooth sound system/speakers/soundbars
Bypass Mode - non-bluetooth connect, connect tv and speakers/soundbars/stereo directly by wires.
Dual Connection: Connected 2 wireless earphones or bluetooth speakers at the same time in tx mode.
Dual Antenna: Dual antenna extend and strengthen the transmit ensure clear and consistent audio.
HD LCD Screen: Visual screen makes operations get instant response.
Wireless Transmit: Connect your headphones by bluetooth ensure you can enjoy audio wirelessly.
Wide Compatibility: Aux, rca, opt 3 port to choose. Compatible with 99% of tvs, home stereos.

Product Specification:
Size: 3.3×1.3×0.4 inch
Net Weight: 0.15lb
Battery Capacity: 5v 500mA
Bluetooth Version: 5.3

What's in the box?
Dual Antenna Bluetooth 5.3 Transmitter & Receiver*1
3.5mm Aux Cable*1
Male Rca Cable*1
Opt Cable*1
Charging Cable*1