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Compact black rectangular Bluetooth 5.1 adapter with 3.5mm, RCA, 6.5mm mic ports and small display

Vszerda

Vszerda Bluetooth 5.1 Transmitter Receiver 4-in-1 Wireless Adapter

SKU CH-N87M-7XVKD

Bluetooth 5.1 adapter transmits or receives audio with 40 ms latency and 8-hour battery

  • Bluetooth 5.1 cuts delay to under 40 ms
  • 4-in-1 design handles TX, RX, FM radio and mic input
  • 1200 mAh battery runs up to 8 hours per charge
  • NFC pairing connects a phone with one touch
  • 5 mm mic jack with anti-howling suits KTV sessions

4-in-1 Bluetooth 5.1 Adapter

The Vszerda unit works as both a transmitter and a receiver. In TX mode it sends audio from a TV or other wired source to Bluetooth headphones or speakers. In RX mode it adds Bluetooth input to legacy hi-fi systems, car stereos or powered speakers. It also includes an FM tuner and a 6.5 mm microphone jack for karaoke use.

Battery life and latency limits

A 1200 mAh battery charges in 1.5 hours and runs for up to 8 hours. Standby reaches 300 hours. The DSP codec cuts Bluetooth latency from 220 ms to below 40 ms, making lip-sync acceptable for video. Wired connections via 3.5 mm AUX or RCA remain the only zero-latency path.

Connections and daily workflow

Inputs cover 3.5 mm AUX, RCA, FM antenna, USB, TF card and the 6.5 mm mic; outputs are 3.5 mm AUX and RCA. NFC lets a phone pair with one tap. The built-in screen measures 36 by 8 and shows FM frequency from 87.5 to 108 MHz. Supported file formats include MP3, WAV, WMA, APE, FLAC, DTS, AAC and others. Buyers needing aptX HD or LDAC codecs, or a fixed installation without battery management, should look elsewhere.

Highlights

  • Bluetooth 5.1 cuts delay to under 40 ms
  • 4-in-1 design handles TX, RX, FM radio and mic input
  • 1200 mAh battery runs up to 8 hours per charge
  • NFC pairing connects a phone with one touch
  • 5 mm mic jack with anti-howling suits KTV sessions

Specifications

No published specifications for this item yet.

Questions about this item

Will the Vszerda Bluetooth 5.1 adapter work with my older TV that only has RCA audio outputs?

Yes, the adapter includes RCA input and output connections alongside 3.5 mm AUX, making it compatible with 99% of TVs including older models using analogue audio.

How can I confirm the low-latency mode is active after pairing my headphones?

The built-in DSP decoding chip reduces delay from 220 ms to under 40 ms; you will notice audio stays in sync with video during playback, and the 36×8 mm screen shows the current connection status.

Does the package include a 6.5 mm microphone or do I need to buy one separately?

A 6.5 mm high-definition microphone interface is built in for singing, and the unit ships with a rechargeable 1200 mAh battery, charging cable and FM antenna — no separate microphone purchase is required.

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