Contacta STS-SJB — 3.5 mm headset break-out box is listed by YYST Global for buyers looking for Contacta enterprise IT hardware. Contacta STS-SJB is the 3.5 mm break-out box for a window intercom staff-side headset connection. The RJ11 version is a different product code, STS-SJB-RJ. The listed condition is Condition confirmed by quotation. The reference price is US$ 157.00. Contact our sales team to confirm stock, lead time, warranty and configuration before ordering.
The official product-code table identifies STS-SJB as the 3.5 mm version. Separate microphone and headphone TRS connections must be matched to the headset; a picture of an RJ11 socket does not identify this variant.
The box can supplement or replace the staff unit so staff can listen through a headset with reduced loudspeaker noise. It is an accessory, not a complete intercom kit. Provide the amplifier and headset details, and ask for a connector photograph when confirming the exact supplied unit.
| Exact variant | STS-SJB — 3.5 mm |
|---|---|
| Microphone input | 3.5 mm TRS |
| Headphone connection | 3.5 mm TRS |
| Housing | Black ABS plastic |
| Dimensions | 20 × 117.6 × 39 mm |
| Different variant | STS-SJB-RJ uses RJ11 |
Product Quotation | ![]() | Condition and Packaging | |
Return Eligibility | Returns and Replacement | ||
Shipping Arrangements | ![]() | Warranty Terms |
Contacta STS-SJB — 3.5 mm headset break-out box is a Contacta IT hardware product supplied by YYST Global for enterprise IT procurement and infrastructure projects.
For STS-SJB, the manufacturer specification lists dimensions as 20 × 117.6 × 39 mm.
Contact YYST Global to confirm availability for STS-SJB, the required quantity, exact configuration, delivery destination and current lead time before ordering. A product listing does not confirm current inventory.
The current reference price for STS-SJB is US$ 157.00. Final pricing can change based on stock, quantity, configuration and delivery destination.
Related products

STS-K002L is Contacta’s surface-mounted window intercom for quieter counters and booths. Separate customer-side speaker and microphone units work with an open-duplex amplifier, staff microphone/loudspeaker and counter hearing loop. It is not a network switch.

STS-K009-IP-L-B is Contacta’s entry intercom kit with an IP55 surface-mounted customer call unit, open-duplex speech amplifier, staff unit and hearing loop. The front call button alerts staff while the communication channel remains hands-free.

STS-K058 is a Contacta window intercom system with a bent, vandal-resistant customer microphone mounted to the screen, a staff unit and a counter hearing-loop facility.

Contacta STS-K001L is a window intercom system with a customer bridge-bar microphone/speaker, a staff unit, open-duplex amplification and a counter hearing loop.

Contacta STS-K064 is a window intercom speech-transfer system with a customer-side anti-vandal microphone and overhead speaker, a staff loudspeaker/microphone unit, amplifier, power supply and counter hearing loop.

IR-RX2 is Contacta’s portable infrared receiver for assistive listening, supporting the manufacturer’s 2.3 MHz and 2.8 MHz transmitters. It uses rechargeable batteries and requires headphones or an assistive neck loop; it is not an Ethernet switch.

IR-RX2-DC5 is a five-position charging base for Contacta portable listening receivers, including IR-RX2. It is a charger accessory, not a network switch. Expansion to twenty receivers requires four bases and the approved higher-current power supply.

RF-DC6-865/915 is Contacta’s six-position drop-in charger and programming station for RF-RX1 receivers and RF-TX1 transmitters. Choose the regional 865 MHz or 915 MHz version to match the devices; the slash does not identify a universal dual-band unit.