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Small rectangular Bluetooth 5.0 adapter with USB plug and TX/RX switch

Ruth's sister

Ruth's sister KN330 Bluetooth 5.0 international power cord

SKU CH-XVES-FVZ4T

Bluetooth 5.0 audio transmitter and receiver with USB power, 10 m range and TX/RX mode switching

  • Wireless audio up to 10 metres with Bluetooth 5.0
  • Switch between transmitter and receiver modes instantly
  • Compact 45 by 20 by 11 millimetre design fits anywhere
  • USB powered — no battery to recharge
  • Red and blue LEDs show active mode at a glance

Ideal for adding Bluetooth 5.0 to legacy audio gear

This compact adapter adds Bluetooth 5.0 to devices that lack it, working as a transmitter from a TV or as a receiver for powered speakers. It draws power from any USB port, so no separate charger is needed. The 10 m range covers typical living-room distances.

Not for aptX or AAC listeners

Buyers who want aptX or AAC codec support should look elsewhere because this unit does not support those formats. It also lacks a built-in battery, so it cannot operate away from a USB power source. Users needing multi-room or party-mode streaming will find this single-link device insufficient.

Bluetooth 5.0 with A2DP and AVRCP

The adapter uses Bluetooth 5.0 and supports A2DP plus AVRCP in receiver mode, deciding whether it fits your audio chain. A sliding switch selects TX or RX mode, shown by a red or blue LED. Dimensions are 45 mm by 20 mm by 11 mm.

Highlights

  • Wireless audio up to 10 metres with Bluetooth 5.0
  • Switch between transmitter and receiver modes instantly
  • Compact 45 by 20 by 11 millimetre design fits anywhere
  • USB powered — no battery to recharge
  • Red and blue LEDs show active mode at a glance

Specifications

No published specifications for this item yet.

Questions about this item

Which mode should I select — transmitter or receiver?

Slide the TX/RX switch to TX (red LED) to send audio from a TV or computer to Bluetooth headphones, or to RX (blue LED) to stream music from a phone to wired speakers.

What does the 10 m range mean when the adapter is plugged into a TV?

In open space you can keep paired headphones or a speaker up to 10 m away; walls or furniture will reduce the reliable distance.

How does the USB power interface limit where I can use the KN330?

The device draws 5 V from any USB port — TV, laptop, car charger or power bank — so it works wherever a USB socket is available.

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