JPA-B81 voice alarm/speaker (B80S series, IP protection, bending/reversing voice)

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Key features

Voice alarm with super clear speech: "Cautious! vehicle turning left" / "turning right" / "Warning! vehicle reversing"
12-24 VDC input, output 97 dB (+/-4 dB @1.2M)
B80S series: recommended voice model, best sound quality for road vehicles
Languages available: Chinese / English / Korean; USB model lets the user change the sound by themselves
Compact housing with mounting bracket, 85 x 70 mm, open 4-wire cable
Epoxy-sealed electronics, shock and vibration resistant (manufacturer catalogue: IP67)
Voltage polarity reverse protection; CE and RoHS compliant
For trailer trucks, crane trucks, vans - warning pedestrians and cyclists around the vehicle

Points to confirm before production so the unit arrives ready to fit.

Confirm the voltage (12-24V, the same series also has 12-24/48V wide voltage version)
Confirm the voice language and content (Chinese/English/Korean, turning/reversing voice), whether a USB customizable voice model is required
Confirm the IP rating: The manufacturer's color page says IP67, and the existing pictures indicate IP69K. Please confirm with the factory before shipment
Confirm the wire material: the default is 4-core bare wire, the wire length and wire sequence definition must be clearly written
Confirm mounting hole spacing and brackets (85 x 70 mm profile)
Confirm quantity, packaging and printing requirements in advance.

Voltage, wiring, sealing and maintenance guidance for the installer.

Before wiring, confirm the voltage and never reverse the polarity.
The bell mouth should face outward or downward to prevent the sound hole from being blocked by mud or ice
Make the bare wire joints waterproof (heat shrink tube + waterproof sleeve) to avoid water oxidation
Route the wires securely and avoid being close to high-temperature parts such as the engine
For voice models, do not beep continuously at full power for a long time
After installation, test the sound to make sure the voice is clear before tightening the screws

Knowledge base