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
Mini 503 Bluetooth headphones with headband, TF card slot and FM radio

Ruth's sister

Ruth's sister 503 internal power cable

SKU CH-THWE-WJ4W1

Mini 503 Bluetooth headset supports hands-free calls, TF cards and FM radio

  • Wireless Bluetooth audio frees movement during sport
  • Handsfree calls keep focus without touching device
  • TF card slot plays music without phone
  • FM radio adds live stations offline

Ruth's sister 503 headphone overview

The Ruth's sister 503 is a wireless Bluetooth headset with a built-in FM radio and TF card slot. It plays MP3 files directly from the card without a separate device. The headband design suits sports and casual listening.

Installation and common issues

Pair the headset with a phone or player through standard Bluetooth pairing. Insert a TF card for standalone playback. No cables or drivers are required. Buyers who need wired connectivity or active noise cancellation should look elsewhere.

Highlights

  • Wireless Bluetooth audio frees movement during sport
  • Handsfree calls keep focus without touching device
  • TF card slot plays music without phone
  • FM radio adds live stations offline

Specifications

No published specifications for this item yet.

Questions about this item

How can I confirm the 503 headset is paired and playing audio correctly?

The 503 headset announces pairing status through voice prompts and LED indicators; successful Bluetooth connection, TF card playback or FM tuning is confirmed by audible output from the earcups.

What accessories are included with the 503 headset and what must I provide separately?

The 503 headset ships as a standalone unit with integrated rechargeable battery; a USB charging cable and TF memory card for MP3 storage are not included and must be purchased separately.

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

More in Internal Power Cables

Similar items

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