Bosch BT-2 Small Earcones

Keep communications discreet and reliable with the RTS Bosch BT-2 Small Earcones — precision ear buds engineered for professional security, surveillance and monitoring applications. These small BT-series earcones sit comfortably inside the ear canal, delivering clear audio from any Telex Telethin driver when paired with the ET-4 eartube. Sold as a 5-pack (Manufacturer Part Number: BT-2), they offer cost-effective replacement and quick deployment across teams or multi-shift operations. The low-profile design minimizes visibility on camera and reduces ambient noise, improving voice intelligibility for guards, event staff and control-room operators. Compatible with Bosch/RTS ET4 earmold systems, the BT-2 earcones are built for dependable, long-term use in demanding environments. Whether you’re outfitting a security detail, stockpiling spares for surveillance rigs, or upgrading in-ear monitoring for broadcast or communications, these earcones provide a comfortable, secure fit and clear audio reproduction. Add the RTS Bosch BT-2 Small Earcones to your kit today for dependable in-ear performance in professional monitoring and comms setups.

• Discreet, comfortable in-ear fit for extended wear — ideal for security and surveillance teams
• Designed for clear audio transfer with Telex Telethin drivers when used with ET-4 eartube
• Small size molds securely inside the ear canal to reduce background noise and improve intelligibility
• Packaged in a 5‑pack for easy replacement and deployment across multiple staff or shifts
• Lightweight, low-profile design supports covert monitoring, event comms and professional installations