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XPDm Lavalier

Digital Wireless System with LM7

Going wireless has never been easier with the XPDm Lavalier Digital Wireless System, a unique wireless microphone solution ideal for presenters, educators and interviewers. Operating on the license-free 2.4 GHz frequency, this digital wireless system offers easy setup, professional full-range audio, and 100' of wireless operation at an unbeatable price.

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  • Digital Wireless Technology

    The XPDm Lavalier System delivers high-quality audio using 2.4GHz digital transmission. This wireless technology allows the microphone transmitter to send an uncompressed signal to the receiver and offers a greater signal-to-noise when compared to traditional wireless systems.

  • PXD1-BP-Transmitter

    Clip-On, Clip-Off

    The PXD1 beltpack transmitter allows for 100’ of wireless range and provides up to 20 hours of use on two AA batteries. The LM7 Unidirectional Lavalier Microphone connects with the beltpack transmitter and captures vocals with absolute clarity. A lightweight mic clip is included for low-profile microphone placements on ties, lapels, and other articles of clothing, as well as a windscreen to reduce plosives and other unwanted noise.

  • Simple Addition

    Easily integrate the XPDm Lavalier System into your audio setup with a lightweight and portable RXD1M receiver that has XLR, 1/4,” and 1/8” outputs. Simply pair the handheld PXD1 transmitter to the receiver via the pair button for straightforward synching.

    XRDm receiver top and end panel view

Features / Specs

XPDm Lavalier Digital Wireless System

  • High performance digital wireless system
  • Operates on 2.4GHz License-free frequency
  • 100’ (30m) line-of-sight operating range

PXD1 Beltpack Transmitter

  • Includes LM7 Unidirectional Lavalier Microphone
  • Offers up to 20 hours of battery life using two AA batteries

RXD1M Tabletop Receiver

  • Balanced XLR, unbalanced 1/4,” and unbalanced 1/8” outputs
  • One-touch pairing button
  • Rotary volume knob with integrated power switch


Simultaneous Systems 2
Working Range 100' (30m) line of sight
Working Frequency 2.404~2.476 GHz
Modulation type GFSK
Audio Frequency Response 20Hz–16KHz
T.H.D <0.1% (@ 1KHz, -10dBu)
Signal to Noise >85 dB
PXD1 Transmitter
Microphone Samson LM7 lavalier mic
Input Connector Mini-XLR (P3)
RF Power <10 mW EIRP
Power Requirements Two AA (LR6) alkaline batteries
Battery Life 20 hours
Audio Sample Rate 32 kHz
Dimensions 3.75” x 2.44” x 0.75” / 96mm x 62mm x 18.5mm
Weight 0.2lb / 93g
RXD1m Receiver
Audio Output Level 1/8” (3.5mm) & 1/4” (6.3mm) jack (unbalanced) +4 dBu, 1 kHz, <0.6% THD+N
Audio Output Level XLR jack (balanced) +4 dBu, 1 kHz, <0.6% THD+N 
Audio Output Impedance 1/8” (3.5mm) & 1/4” (6.3mm) jack (unbalanced)  110 ohms @ 1kHz 
Audio Output Impedance XLR output jack (balanced) 2.4Kohms @ 1kHz
RF Sensitivity -78dBm/20dB SINAD
Image Rejection >50dB
Operating Voltage 5VDC 500mA
Dimensions 4.3” x 3.7” x 1.5” / 110mm x 95mm x 39mm
Weight  0.33lb / 152g 

Compare Lavalier Wireless Systems

XPD2 Lavalier


XPDm Lavalier


Concert 88x Presentation


Concert 99 Presentation

Type 2.4GHz Digital 2.4GHz Digital UHF UHF
Frequencies n/a n/a 100 80
Compatible Systems per band 2 2 8 8
Mic Capsule LM8 Lavalier LM8 Lavalier LM5 Lavalier LM10 Lavalier
Transmitter Battery 2xAA / 20 hours 2xAA / 20 hours 2xAA / 8 hours Lithium Ion Rechargeable / 8 Hours
Receiver Type USB Stick Tabletop Half-rack Half-rack
Rack-mountable No No Yes - Rack kit included Yes - Rack kit included
Receiver Output Connections USB, 1/8" XLR, 1/4", 1/8" XLR, 1/4" XLR, 1/4"
Antenna Distribution Capable No No No Yes

Warning CALIFORNIA PROPOSITION 65 WARNING: Cancer and Reproductive Harm -

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