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Small rectangular Bluetooth adapter with 3.5mm jack and mode switch, matte black finish

Qyouth

Qyouth KN321 Bluetooth 5.0 transmitter receiver watch accessory

SKU CH-M0KB-PY1HW

A Bluetooth 5.0 transmitter and receiver with a 3.5 mm jack for wireless audio streaming up to 10 m

  • Size or dimensionsSeries 1
  • Product typeScreen Protector
  • Main material2023-07-05 14-44-09--530
  • Streams audio wirelessly up to 10m via Bluetooth 5.0
  • Switches between transmitter and receiver modes with a single flick
  • Weighs only 18g and measures 44mm across for travel
  • Charges fully in 2 hours using the 200mAh Li-Polymer battery
  • Includes 3.5mm and 3.5mm-to-2RCA cables for broad device compatibility

Compact Bluetooth 5.0 Audio Adapter

The Qyouth KN321 is a 2-in-1 Bluetooth 5.0 transmitter and receiver designed for wireless audio streaming. It connects non-Bluetooth sources such as a TV or CD player to Bluetooth headphones, or sends audio from a phone or computer to wired speakers. The unit weighs 18g and measures 44mm across, making it easy to carry in a bag.

Sustained Streaming Stability

Bluetooth 5.0 with A2DP and AVRCP profiles maintains a reliable link up to 10 metres without obstructions. The built-in 200mAh lithium-polymer battery supports extended listening sessions and recharges fully in two hours. A simple switch toggles between transmitter and receiver modes without interrupting playback.

Low Power Operation

The adapter draws minimal power from its internal battery during normal use, eliminating the need for an external supply. No cooling fan is present, so operation is completely silent. The included 3.5mm and 3.5mm-to-2RCA cables provide broad compatibility with stereo systems, headphones and portable players.

How it compares

Measured against everything we stock in Watch Bands, Cases & Chargers, at today’s prices. Recalculated every night.

Price $13.99
Cheaper than about 55% of the 358 comparable items (median $14.99).

Specifications

Product
Product typeScreen Protector
Size & build
Size or dimensionsSeries 1
Main material2023-07-05 14-44-09--530

Questions about this item

How long does the 200 mAh battery last before I need to recharge it during all-day use?

The built-in 200 mAh lithium-polymer cell charges in about 2 hours and then powers the adapter for extended streaming sessions.

Which cables or ports must I already have on my TV or stereo to connect the 3.5 mm jack?

You need a 3.5 mm aux output or RCA inputs on the source device; a 3.5 mm-to-2RCA cable is included for older stereo systems.

Will the Bluetooth 5.0 link stay stable if I keep my phone paired while the adapter is plugged into a vintage amplifier?

Yes, Bluetooth 5.0 maintains a reliable connection up to 10 m (33 ft) without obstructions, even with legacy audio gear.

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