SR-20-Series Lightweight Headset

The SR-20 Lightweight Headset is able to withstand heavy use in challenging warehouse conditions, such as extreme temperature differences, condensation and accidental drops. The SR-20 Headset also remains comfortable during a full shift.

The SR-21 Headset is a universal version designed to be used with handheld devices.

SR-20 Headset Specifications

SR-20 with Straight Cord

Specification	Details
Weight	5.4 oz (153 g) with cord 3.9 oz (110 g) without cord
Operating temperature	-40 °F to 122 °F (-40 °C to 50 °C)
Storage temperature	-40 °F to 158 °F (-40 °C to 70 °C)
Drop Tested	15 drops from 7 feet (2.1 m) at minimum and maximum operating temperatures 50 drops from 6 feet (1.8 m) at minimum and maximum operating temperatures
Enclosure rating	Meets IP67
Humidity	5-95% condensing
Noise Reduction Rating	Not applicable
Cord	Straight with Honeywell breakaway connector

Packaging varies for product shipments. Generally, packing materials are about 15% of the total shipment weight.

SR-20 with Coiled Cord

Specification	Details
Weight	6.5 oz (184 g) with cord 3.9 oz (110 g) without cord
Operating temperature	-40 °F to 122 °F (-40 °C to 50 °C)
Storage temperature	-40 °F to 158 °F (-40 °C to 70 °C)
Enclosure rating	Meets IP67
Humidity	100% condensing
Noise Reduction Rating	Not applicable
Cord	Coiled with Honeywell breakaway connector

Packaging varies for product shipments. Generally, packing materials are about 15% of the total shipment weight.

SR-21 Headset Specifications

Specification	Details
Weight	5.0 oz (141 g) with cord 3.9 oz (110 g) without cord
Operating temperature	-40 °F to 122 °F (-40 °C to 50 °C)
Storage temperature	-40 °F to 158 °F (-40 °C to 70 °C)
Enclosure rating	Meets IP67
Humidity	100% condensing
Noise Reduction Rating	Not applicable
Cord	Straight with consumer grade 2.55 mm audio jack

Packaging varies for product shipments. Generally, packing materials are about 15% of the total shipment weight.

Replacing the Ear Pad on the SR-20 Series Headsets

With headset removed and disconnected, rotate the microphone boom so that it is in line with the headset yoke.
Hold the headset by the yoke in one hand. With the other hand rotate the earpiece counter-clockwise 10 degrees.
Disengage the earpiece section from the headset.
Remove the worn foam cover.
With the black O-ring gasket facing out, place a new ear pad over the ear pad mounting disk.
If the ear pad mounting disk does not have a black O-ring gasket attached to it, performance may be affected. You must replace the entire ear pad mounting disk, which includes the black O-ring gasket.
Line up the keys on the earpiece to the headset, connect the mounting disk.
Rotate the earpiece clockwise 10 degrees to secure it. Note that the earpiece does not engage with the headset if it is backwards.