We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in

Ruth's sister

Ruth's sister Bluetooth 5.0 3.5mm wireless adapter

SKU CH-3EV0-6CW57

Adds Bluetooth 5.0 to any 3.5mm audio device for wireless music and hands-free calls

  • Bluetooth 5.0 for stable wireless audio streaming
  • 2-in-1 receiver and transmitter adds Bluetooth to any 3.5 mm device
  • 5 mm jack fits car aux, headphones and speakers
  • Hands-free calling with built-in microphone
  • Compact adapter upgrades legacy audio gear wirelessly

2-in-1 Bluetooth 5.0 adapter

This compact adapter adds Bluetooth 5.0 audio streaming to any device with a 3.5 mm jack. It works as both a transmitter and a receiver so you can send music from a phone to wired speakers or pull audio from a TV into wireless headphones.

Battery operation and low power draw

The unit runs from an internal rechargeable cell and draws minimal current during streaming. With no active cooling it stays silent, making it suitable for quiet rooms or overnight use in a car.

Hands-free calling and A2DP support

The bundled microphone enables clear hands-free calls when the adapter is in receiver mode. A2DP streaming ensures stereo music playback without extra drivers or software installation.

Highlights

  • Bluetooth 5.0 for stable wireless audio streaming
  • 2-in-1 receiver and transmitter adds Bluetooth to any 3.5 mm device
  • 5 mm jack fits car aux, headphones and speakers
  • Hands-free calling with built-in microphone
  • Compact adapter upgrades legacy audio gear wirelessly

Specifications

No published specifications for this item yet.

Questions about this item

How do I plug the 3.5 mm jack into my car aux port and select transmitter or receiver mode?

Insert the 3.5 mm plug into the aux input, then slide the switch to TX for transmitting audio from the car stereo or RX for receiving audio to headphones.

Which part will need replacement first during long-term use?

The internal rechargeable battery will degrade after many charge cycles and is the first component likely to require replacement.

What limits the wireless range during a long drive?

Bluetooth 5.0 provides up to 10 metres line of sight; obstacles or interference will reduce the effective distance.

New to this? Which coin should you pay with — what to check, what it costs to pay, and what is never asked for.

Also in this aisle

People compared these

Same shelf, same checkout — eight coins and a 30-minute rate lock.