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Small rectangular Bluetooth 5.0 adapter with 3.5mm jack and mode switch

Vszerda

Vszerda KN321 2-in-1 Bluetooth 5.0 transmitter receiver

SKU CH-E9Y5-JZC5T

Tiny 44 mm Bluetooth 5.0 adapter switches between transmitter and receiver modes to stream audio wirelessly up to 10 m or 33 ft using the included 3.5 mm and RCA cables

  • Bluetooth 5.0 streams audio up to 10 m wirelessly
  • Weighs 18 g and measures 44 mm for easy carry
  • Switch between transmitter and receiver with one flick
  • 200 mAh battery charges in 2 hours for long use
  • Includes 3.5 mm and RCA cables for broad device fit

Ultra-compact Bluetooth 5.0 audio adapter

The Vszerda KN321 is a 2-in-1 wireless transmitter and receiver weighing 18 g and measuring 44 mm across. It adds Bluetooth 5.0 connectivity to devices that lack it or streams audio from a phone to wired speakers. A 200 mAh lithium-polymer battery provides portable operation.

For adding Bluetooth to legacy gear

This adapter suits anyone who wants to send TV or CD-player audio to Bluetooth headphones, or stream music from a phone to an older stereo or car system. Buyers who need aptX low-latency codecs, multi-point pairing, or a digital optical connection will not find those features here.

Up to 10 m range with 3.5 mm and RCA cabling

In open space the link reaches 10 m or 33 ft. The box includes a 3.5 mm auxiliary cable and a 3.5 mm to 2-RCA cable for broad analogue compatibility. Battery recharge takes about 2 hours, after which the unit is ready for another portable session.

Highlights

  • Bluetooth 5.0 streams audio up to 10 m wirelessly
  • Weighs 18 g and measures 44 mm for easy carry
  • Switch between transmitter and receiver with one flick
  • 200 mAh battery charges in 2 hours for long use
  • Includes 3.5 mm and RCA cables for broad device fit

Specifications

No published specifications for this item yet.

Questions about this item

What audio outputs must my TV or stereo already have for the KN321 transmitter to connect?

The KN321 includes a 3.5 mm cable and a 3.5 mm to 2 RCA cable, so the source device needs either a 3.5 mm headphone jack or RCA line outputs.

If I keep using my older wired speakers that only have a 3.5 mm input, will the KN321 receiver mode drive them?

Yes, in receiver mode the KN321 outputs audio through its 3.5 mm jack, letting Bluetooth 5.0 sources stream to any wired speaker or headphone with a 3.5 mm plug.

How can I confirm the KN321 is paired and streaming correctly after I flip the mode switch?

The LED lights up when powered on; a steady glow indicates an active Bluetooth 5.0 link, while no light means the unit is off or not paired.

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