HONG KONG GOODS
5.8 GHz Stereo True Diversity system with a reliable 100-foot wireless connection
Automatically scans the available wireless channels and selects the best one
High-quality, ultra-compact stereo wireless system for in-ear monitors
Audiophile 24-bit / 41.6 kHz sound with less than 5 ms of latency
Package contents may vary depending on the distributor or sales region. Please refer to the product description of your local dealer.
Crystal-clear wireless in-ear monitoring—in true STEREO—with ultra-reliable connections up to 100 feet on the 5.8 kHz band!
In-ear monitoring in stereo is more enjoyable, and panning instruments or voices to one ear or the other makes them easier to hear.
DUAL OUTPUTS
In order to broadcast stereo to your in-ears, U45D uses two XLR connectors. The main Transmitter module (L) connects to the Left output on your mixer, and includes all functional controls and indicators. The Stereo Expansion Module (R) is pre-connected to the Transmitter module, and plugs into the Right output on the mixer. Both units can also be connected to unbalanced ¼” TS aux outputs using the included adapters.
STEREO AND OTHER MODES
U45D features four selectable output modes: STEREO, L , R, and MIX. For full STEREO mode, pan the left channel output on the mixer hard left, and the right channel hard right. L (left) mode sends the left channel to both earphones; R (right) mode sends the right channel to both earphones. “MIX” sums the left and right channels to mono and sends the mono channel to both ears. Only connecting the L transmitter module to the soundboard output also has the effect of sending a mono signal to both ears.
AUTOMATIC CHANNEL OPTIMIZATION
U45D offers six fixed-frequency channels. The channel with the strongest signal can be automatically detected and selected by pressing and holding the channel button on the Receiver for 3 seconds to enter Channel Scan mode. The Receiver’s channel LED will flash during scanning and then will stay on the optimal wireless channel. Set the Transmitter to the same channel to pair your system.

5.8 GHz STABILITY
5.8 GHz is a more reliable choice for wireless connection stability. Signal interference is more likely on the 2.4 GHz band, since more devices use that frequency.
LONG WIRELESS RANGE
The U45D signal can travel up to 100 ft; actual range depends on RF signal absorption, reflection and interference.
GREAT SOUND
Enjoy an audiophile monitoring experience with 24-bit / 41.6 kHz audio, wide 20 Hz – 20 kHz frequency response, a dynamic range of 110 dB, signal-to-noise ratio of 110 dB and less than 5 ms latency.
LONG BATTERY LIFE
The U45D system offers 5 hours of battery life to get you through any gig!
ADAPT TO TRS
The included XLR male to 1/4″ TS adapters can be used to connect to 1/4″ aux outputs on the mixer.
WHAT’S IN THE BOX
Your U45D set includes: Transmitter, Receiver, dual USB-C cable, XLR-1/4” adapter, mini XLR-1/4” adapter and carry case.
Specifications
WIRELESS TYPE
5.8 GHz ISM worldwide open band
BIT DEPTH/SAMPLE RATE
24-bit / 41.6 kHz
SWITCHABLE CHANNELS
6
SIMULTANEOUS CHANNELS
6
FREQUENCY RESPONSE
20 Hz – 20 kHz (-3dB)
DYNAMIC RANGE
110 dB
SIGNAL-TO-NOISE RATIO
110 dB
MODES
Stereo, L, R, Mono
TOTAL HARMONIC DISTORTION
0.2%
LATENCY
5 ms
OPERATING RANGE
30.5 m / 100 ft (line-of-sight)
TRANSMITTER
CONNECTOR
Dual XLR or unbalanced 1/4” TS with supplied adapters
DIMENSIONS
50 x 25 x 128 mm / 3.8" x 1.2" x 1.1"
WEIGHT
148 g / 5.22 oz
RECEIVER
HEADPHONE OUTPUT
3.5 mm / 1/8"
DIMENSIONS
60 x 47 x 41 mm / 2.36" x 1.85" x 1.61"
WEIGHT
120 g / 4.23 oz
BATTERY
TYPE
Rechargeable Lithium-ion (internal)
BATTERY LIFE
5 hours
CHARGING TIME
2.5 hrs (full charge)
CHARGING VOLTAGE
5V/2A or 5V/3A (USB)