Bosch BT-4 Large Earcones
Special Order: typically 2–6 weeks
Ships directly from the manufacturer. This is an estimated lead time, not a guaranteed delivery date.
Availability can change and lead times may be longer. If your project has a deadline, check with us before ordering.
A member of our team will check with the manufacturer and personally reply by email.
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Key Features
- Comfortable, secure in-ear fit reduces fatigue during long security and surveillance shifts
- Clear, unobstructed audio from Telex Telethin drivers for reliable monitoring and communications
- Large-size BT-4 earcones designed to work seamlessly with Bosch/RTS ET-4 eartubes
- Packaged quantity of 5 for easy replacement and reduced downtime in professional deployments
- Durable, hygienic design lets teams swap earcones quickly to maintain performance and cleanliness
Quick Specifications
- Product Model
- BT-4
- Brand Name
- RTS
- Product Name
- Earcones for ET4, Large Size
- Product Type
- Ear Bud
Explore the details
Product information
BT-4
Overview
Built for reliable communications in security, surveillance and monitoring environments, the RTS Bosch BT-4 Large Earcones deliver a comfortable, secure in-ear fit and clear audio reproduction for professional teams. These BT series earcones are specifically designed to mate with Telex Telethin drivers and the Bosch/RTS ET-4 eartube, ensuring clean signal transfer and consistent voice clarity when using pro microphones and headsets. Supplied as a pack of 5, the BT-4 earcones make it simple to stage replacements for frontline operators, reducing downtime and keeping headsets mission-ready. The large-size profile offers better sealing for users who need improved isolation in noisy control rooms or field operations, while the replaceable design supports hygiene protocols and straightforward maintenance. Ideal for security officers, surveillance technicians, and monitoring staff who depend on dependable in-ear audio, the BT-4 earcones are a practical, cost-effective accessory for professional headset systems. Order a pack to outfit your team or swap out worn earcones and maintain optimal communications performance.
Features
- Comfortable, secure in-ear fit reduces fatigue during long security and surveillance shifts
- Clear, unobstructed audio from Telex Telethin drivers for reliable monitoring and communications
- Large-size BT-4 earcones designed to work seamlessly with Bosch/RTS ET-4 eartubes
- Packaged quantity of 5 for easy replacement and reduced downtime in professional deployments
- Durable, hygienic design lets teams swap earcones quickly to maintain performance and cleanliness
| General Information | |
|---|---|
| Brand Name | RTS |
| Manufacturer | The Bosch Group |
| Product Name | Earcones for ET4, Large Size |
| Product Type | Ear Bud |
| Product Series | BT |
| Packaged Quantity | 5 |
| Manufacturer Part Number | BT-4 |
| Miscellaneous | |
| Compatibility | Bosch ET4 Earmold |
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Plan your purchase
Is this right for your project?
Confirm the model, required accessories and delivery needs before ordering.
- SKU:
- BT-4
- Manufacturer part:
- BT-4
How do I confirm compatibility?
Check the specifications and manufacturer documents for your existing system. Send us your model numbers and project requirements if you need help selecting equipment or accessories.
Ask a product specialistWhen will this item ship?
Availability is shown above. Special-order items and project quantities may need additional lead time. Contact us to confirm a delivery date before scheduling installation.
Shipping, freight and delivery detailsWhat should I know about returns?
Returns require an approved RMA. Consult the linked return policy for deadlines and eligibility. For standard non-defective returns, eligible factory-sealed items carry a 15% restocking fee and customer-paid return shipping; open-box and used items are refused. Defective and DOA claims follow the policy's separate terms. Special orders and other exclusions are final sale.
Read return eligibility and exclusionsBosch BT-4 Large Earcones
BT-4