The ULPMX4S Max 4G Single Headset from Eartec is an adjustable, mid-weight design, single-ear headset. It features a wide comfortable headband, noise canceling microphone, a flexible boom, and soft deluxe ear padding. The ULPMX4S Max 4G Single Headset comes ready to operate with your existing wired beltpacks or intercom console and is built with a 3′ cable that terminates with a 2.5mm to 3.5 mm jack.
Max 4G Single Headset for UltraPAK

Key Features
- For Wired Intercoms
- Fits UltraPAK System
- Electret Noise Cancelling Microphone
- 50 Hz to 10 kHz Mic Frequency Response
- 3′ Cable Length
- 2.5 to 3.5mm Molded Connector
Specs
Eartec Max 4G Single-Ear Specs
Headphone
Earpiece Design | Over-Ear (Circumaural) |
Number of Earpieces | Single Earpiece |
Impedance | 32 Ohms |
Microphone
Type | Electret Condenser |
Frequency Response | 50 Hz to 10 kHz |
Wired Connectivity
Audio Connector to Source | Motorola 2-Pin (3.5/2.5 mm) |
Cable Length | 3′ / 0.9 m |
Physical
Weight | 5 oz / 141.7 g |
Packaging Info
Package Weight | 0.4 lb |
Box Dimensions (LxWxH) | 9 x 8.5 x 2″ |