Do you have a question about the Williams Sound PPA R37 and is the answer not in the manual?
Amplifying sounds to high volume may cause hearing damage. Use minimum volume and secure product.
Do not recharge non-rechargeable batteries. Recycle used batteries properly.
Consult physician before use with medical devices like pacemakers.
Proper disposal of equipment and batteries to protect the environment.
Insert AA batteries correctly and connect headphones/earphones/neckloop to the output jack.
Turn volume control up to power on. Green LED blinks then turns on continuously.
Press Channel Seek to find an active transmitter. Push again for more channels.
Turn power off, hold seek button, turn power on to lock/unlock a selected channel.
Interprets LED blinking patterns for channel status, battery level, and power modes.
Details on compatible AA batteries (alkaline/NiMH) and expected battery life.
The LED will flash at 1-second intervals to indicate low battery power.
Information on charging rechargeable batteries using the optional CHG 3512 multicharger.
Instructions for cleaning earpads, including washing foam pads with mild soap.
Technical details including dimensions, weight, battery type, frequency, and output.
Lists FCC, IC, RoHS approvals and details the 5-year product warranty and 90-day accessory warranty.
Step-by-step guide on how to attach and detach the belt clip for hands-free operation.
Information on the 5-year warranty for the receiver and 90-day warranty for accessories.
Contact information for toll-free customer support and instructions for returning the system for service.
Amplifying sounds to high volume may cause hearing damage. Use minimum volume and secure product.
Do not recharge non-rechargeable batteries. Recycle used batteries properly.
Consult physician before use with medical devices like pacemakers.
Proper disposal of equipment and batteries to protect the environment.
Insert AA batteries correctly and connect headphones/earphones/neckloop to the output jack.
Turn volume control up to power on. Green LED blinks then turns on continuously.
Press Channel Seek to find an active transmitter. Push again for more channels.
Turn power off, hold seek button, turn power on to lock/unlock a selected channel.
Interprets LED blinking patterns for channel status, battery level, and power modes.
Details on compatible AA batteries (alkaline/NiMH) and expected battery life.
The LED will flash at 1-second intervals to indicate low battery power.
Information on charging rechargeable batteries using the optional CHG 3512 multicharger.
Instructions for cleaning earpads, including washing foam pads with mild soap.
Technical details including dimensions, weight, battery type, frequency, and output.
Lists FCC, IC, RoHS approvals and details the 5-year product warranty and 90-day accessory warranty.
Step-by-step guide on how to attach and detach the belt clip for hands-free operation.
Information on the 5-year warranty for the receiver and 90-day warranty for accessories.
Contact information for toll-free customer support and instructions for returning the system for service.
| battery type | Two AA non-rechargeable alkaline batteries |
|---|---|
| battery life with non-rechargeable batteries | 48 hours |
| battery life with rechargeable batteries | 30 hours |
| operating frequency channels | 17 channels |
|---|---|
| operating frequency range | 72.1 MHz to 75.9 MHz |
| dimensions | 104 mm x 72 mm x 35 mm |
|---|---|
| weight with batteries | 130 g |
| weight without batteries | 73 g |
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