Flushmount Speakerphone [SP-3800]
The SP-3800 is a rugged, tamper-resistant hands-free speakerphone designed for high-risk and public environments where traditional handsets may pose a safety threat. With no handset or keypad, it offers an ultra-low-maintenance solution while enhancing security in settings such as jails, prisons, psychiatric facilities, hospitals, and other public areas. The unit mounts flush inside a wall cutout for a clean, recessed finish.
Features
- Constructed of durable 14-gauge, 304 brushed Stainless Steel
- Recessed, flush-mount design for a sleek, simple look
- No handset, cradle, hookswitch, or keypad equates to lower parts maintenance
- Jail/Prison/Patient/Public hands-free speakerphone design eliminates suicide risk in jail settings
- Single, stainless push button for initiating and terminating calls
- Adjustable volume button
- Includes screw terminal on rear with connections for Tip, Ring & Ground (optional)
- Designed with a noise-reducing microphone that filters background noise
Technical Specifications
Ambient temperature: -40 ℃ ~ + 60 ℃
Relative humidity: ≤95% (at room temperature)
Atmospheric pressure: 80~110KPa
Signal voltage: DC48V
Standby operating current: ≤1mA
Frequency response: 300 ~ 3400 Hz
Ringing level: ≥80dB
Anti-corrosion grade: WF2Protection
Protection level: IP54
Dimensions:
Overall (LxWxD): 8.9 x 5.5 x 2"
Recessed Area (LxWxD): 7 x 4 x 1.75"
Frame Overlap: Approx. 3/4"
Weight: 3 lbs


![Flushmount Speakerphone [SP-3800]](http://www.armoredphones.com/var/images/product/400.350/JP-3800%20Flushmount%20Speakerphone%20-%20Main%20front.jpeg)
![Flushmount Speakerphone [SP-3800]](http://www.armoredphones.com/var/images/product/400.350/JP-3800%20Flushmount%20Speakerphone%20-%20rear.jpeg)
![Flushmount Speakerphone [SP-3800]](http://www.armoredphones.com/var/images/product/400.350/JP-3800%20Flushmount%20Speakerphone%20-%20side.jpeg)
![Flushmount Speakerphone [SP-3800]](http://www.armoredphones.com/var/images/product/400.350/JP-3800%20Flushmount%20Speakerphone%20-%20corner%20hole%20close%20up.jpeg)
![Flushmount Speakerphone [SP-3800]](http://www.armoredphones.com/var/images/product/400.350/JP-3800%20Flushmount%20Speakerphone%20-%20Hole%20Specs.jpg)
![Flushmount Speakerphone [SP-3800]](/assets/web/customer/images/no_image.png)

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