Halter Technical Microsone Discreet Audio Monitoring System

Using the transmitters you already own, the Halter Technical Microsone is a discreet audio monitoring system that lets on-camera and on-stage talent hear their IFB feed with no wires in sight.

The system pairs two rechargeable Bluetooth earbuds with a beltpack transceiver and a charging case. The sound technician sets up the frequencies, and the wearer controls the volume.

Microsone Earbuds

Each earbud measures 0.70 inch (18 mm) and sits hidden in the ear canal. It has no buttons or dials, it comes in light and dark skin tones, and its built-in lithium battery means no disposable hearing aid batteries. A beep warns the wearer when the battery is near empty, so the second earbud can take over. Each one pairs separately and can also pair with another Bluetooth device, such as a phone.

Control Pack Transceiver

The Control Pack receives any analog FM transmitter from 174 to 217 MHz and 470 to 608 MHz, then sends the audio to the earbuds over Bluetooth. It holds four banks of eight channels, reprogrammed from its front panel with no computer. Its antennas are internal, so it hides easily on the wearer or nearby. A key lock stops talent from changing settings.

It runs on two AA batteries or 5 V through its USB-C port, which also charges rechargeable NiMH AA batteries. The top 3.5 mm jack works as a line-level input or as a headphone output, so the pack can also serve as a wired IFB receiver.

Charging Case

The case charges both earbuds at once. Its OLED display shows the case’s own battery percentage and the charging status of each earbud, and it recharges through USB-C.

Features

Two rechargeable Bluetooth earbuds, 0.70 inch (18 mm)
Works with analog FM transmitters of any brand in its range
174 to 217 MHz and 470 to 608 MHz
Four banks of eight channels, field programmable
Volume knob on the Control Pack
Runs on two AA batteries or USB-C power
Headphone output or line-level input on a 3.5 mm jack
Charging case with an OLED display

Available Options

Color	MPN
Light Skin Tone	HTMS1-LIGHT
Dark Skin Tone	HTMS1-DARK

What's Included

2 × Microsone earbuds
Control Pack
Charging case
Wall charger
USB cable
Carrying case
Manual QR code

Specifications

Earbud Bluetooth	Bluetooth 5.2
Earbud Codec	aptX
Earbud Battery	Internal rechargeable lithium-ion
Earbud Charging	Wireless contact charging
Earbud Frequency Response	100 Hz to 9 kHz
Earbud Size	0.70 inch (18 mm)
Control Pack Frequencies	174.000 to 217.000 MHz and 470.000 to 608.000 MHz
Frequency Steps	0.025 MHz
Compatible Transmitters	Analog FM
User Programming	4 user banks of 8 channels each
Control Pack USB	USB-C for battery charging, plug-in power, and firmware updates
Control Pack Battery	2 AA batteries (rechargeable through the USB port)
Audio Output	Bluetooth and 3.5 mm headphone
Volume Knob	Controls earbuds and headphone output
Antennas	Internal
Control Pack Display	Color OLED
Meters	Radio frequency, audio frequency, battery
Display Timeout	60 seconds
Control Pack Size	3.34 × 2.67 × 0.86 inches (85 × 68 × 22 mm)
Charging Case USB	USB-C for internal battery charging
Charging Case Display	OLED indicates internal battery and charging
Charging Case Size	1.22 × 2.79 × 1.45 inches (31 × 71 × 37 mm)