CRYSTAL AUDIO
Crystal Audio BT4 Black
€19.99 Price drop from Kotsovolos
Good price 22% below its average
- €4.00 above its lowest ever
- Lowest
- €15.99
- Average
- €25.51
- Highest
- €39.90
Watch the model to track the lowest price across shops — or open a shop to watch that specific offer.
Price history by shop
Lowest
€15.99
| Shop | Date | Current price |
|---|---|---|
| Kotsovolos | 2025-05-13 | €24.99 |
| Kotsovolos | 2025-06-27 | €24.99 |
| Kotsovolos | 2025-07-14 | €19.99 |
| Kotsovolos | 2025-09-01 | €39.90 |
| Kotsovolos | 2025-09-03 | €19.99 |
| Kotsovolos | 2025-11-13 | €15.99 |
| Kotsovolos | 2025-12-01 | €39.90 |
| Kotsovolos | 2025-12-03 | €19.99 |
| Kotsovolos | 2026-06-13 | €19.99 |
| Kotsovolos | 2026-06-17 | €19.99 |
| Kotsovolos | 2026-06-25 | €19.99 |
| Kotsovolos | 2026-09-01 | €39.90 |
| Kotsovolos | 2026-09-04 | €19.99 |
| Kotsovolos | 2026-10-03 | €19.99 |
Where to buy
Every shop we track that sells this model — cheapest first.
- €19.99Go to store
Prices are what we last saw at each shop — always confirm on the shop’s own page before buying.
Specifications
| Θύρα φόρτισης | Micro USB |
| Colour | Μαύρο |
| Charging | Δεν διαθέτει · varies by shop (1 of 2) |
| Accessories | Καλώδιο USB Type-C |
| Noise cancelling | Διαθέτει (Passive) |
| Controls | Διαθέτει |
| Detachable cable | Διαθέτει |
| Foldable | Διαθέτει |
| Form factor | Over-the-ear |
| Frequency response | 20 - 20 KHz |
| Handsfree | Διαθέτει |
| Connectivity | Ασύρματα - Ενσύρματα · varies by shop (1 of 2) |
| Cable length | 1.2 m |
