The Audio-Technica ATW-1101/L System 10 is a digital wireless lavalier microphone system designed for presentations, lectures, conferences, houses of worship, small venues, educational facilities, and web broadcasting. The system includes an ATW-R1100 tabletop receiver, a bodypack transmitter, and an MT830cW miniature omnidirectional lavalier microphone. Operating in the 2.4 GHz ISM band, it delivers full-bandwidth 24-bit/48 kHz digital audio without the audio artifacts associated with analog companding.

Designed for convenient operation, the ATW-1101/L comes factory-configured for straightforward setup. Automatic frequency selection allows the receiver to find a clean frequency and pair with the transmitter, while the system monitors the operating environment and can switch frequencies to help avoid interference. Triple diversity reception combines space, time, and frequency diversity to improve wireless signal integrity. The system provides a typical operating range of up to 100 feet in open environments with no interfering signals.

The included MT830cW omnidirectional lavalier microphone provides discreet, hands-free speech pickup with consistent sound when the speaker moves their head. The lightweight bodypack features a four-pin locking microphone connector, belt clip, adjustable input trim, and a power switch that doubles as a mute control. The receiver provides balanced XLR and unbalanced 1/4-inch audio outputs, front-panel status indicators, and a System ID display. Up to eight transmitters can be paired with a receiver in advance for sequential use, while up to eight microphone channels can operate simultaneously in the same space.

Key Features

• Digital 2.4 GHz wireless system with 24-bit/48 kHz audio.
• Includes ATW-R1100 tabletop receiver and bodypack transmitter.
• MT830cW omnidirectional lavalier microphone for hands-free speech.
• Automatic frequency selection for quick setup and reliable operation.
• Triple diversity reception helps minimize signal dropouts.
• Up to 100 feet of typical operating range in open environments.
• Up to 7 hours of operation with two AA alkaline batteries.
• Supports up to 8 simultaneous microphone channels in the same space.
• Balanced XLR and unbalanced 1/4-inch receiver outputs.
• Compact, lightweight receiver and bodypack for portable use.

Ideal For

• Business presentations and conferences.
• Classrooms and educational facilities.
• Houses of worship.
• Lectures and public speaking.
• Small performance venues.
• Web broadcasts and speech recording.
• Boardrooms and meeting spaces.

What's in the Box

• 1 × Audio-Technica ATW-R1100 tabletop receiver.
• 1 × Audio-Technica bodypack transmitter.
• 1 × Audio-Technica MT830cW omnidirectional lavalier microphone.
• 1 × Receiver AC power adapter.
• 1 × Belt clip attached to or supplied with the bodypack, as applicable.
• 1 × Input trim adjustment screwdriver, as supplied.
• 2 × AA batteries are required for the transmitter but are not included.

Inputs & Outputs

• Receiver XLR Output Balanced 3-pin XLR audio output.
• Receiver 1/4-Inch Output Unbalanced 6.3mm audio output.
• Bodypack Input Four-pin Hirose-style locking connector.
• Microphone Connector Four-pin Hirose-style connector.
• Bodypack Input Pins Pin 1: GND; Pin 2: instrument input; Pin 3: microphone input; Pin 4: +9V DC bias.
• Microphone Type MT830cW miniature omnidirectional lavalier.
• Transmitter Controls Power/mute switch and internal input trim adjustment.
• Receiver Controls and Indicators Output level control, pairing/status indicators, and System ID display.

Frequently Asked Questions

What is included with the ATW-1101/L?

The system includes the tabletop receiver, bodypack transmitter, MT830cW lavalier microphone, and receiver power adapter.

What is the wireless operating range?

The typical operating range is up to 100 feet (approximately 30 meters) in an open environment without interfering signals.

How long does the bodypack operate on batteries?

Battery life is typically more than 7 hours with alkaline batteries, depending on battery type and usage. Two AA batteries are required and are not included.

Can multiple microphones be used in the same room?

Yes. Up to eight microphone channels can operate simultaneously in the same space under suitable conditions.

Does the receiver have professional audio outputs?

Yes. It provides a balanced XLR output and an unbalanced 1/4-inch output.

Does the system automatically select a frequency?

Yes. Automatic frequency selection helps the receiver find a suitable frequency and pair with the transmitter.

Does the system support encryption or recording?

The supplied specifications list no encryption, built-in recorder, or timecode support.

Full Technical Specifications

General Specifications

System Model	ATW-1101/L System 10
Wireless Technology	Digital 2.4 GHz
RF Frequency Band	2400–2483.5 MHz
Audio Resolution	24-bit / 48 kHz
Frequency Response	20 Hz–20 kHz, depending on microphone type
Operating Range	100 ft / approximately 30 m, typical line of sight
Diversity	Space, time, and frequency diversity
Dynamic Range	Greater than 109 dB, typical
Total Harmonic Distortion	Less than 0.05%, typical
Maximum Simultaneous Channels	Up to 8
Transmitter Pairing	Up to 8 transmitters can be paired with a receiver in advance
Operating Temperature	32°F–104°F (0°C–40°C), general system specification
Interference Management	Automatic frequency selection and frequency switching

Receiver Specifications

Transmitter Type	Bodypack
RF Output Power	10 mW
Antenna	Fixed external
Input	Microphone / instrument compatible
Connector	Four-pin Hirose-style locking connector
Input Adjustment	Internal input trim
Mute Function	Power switch doubles as mute
Sync Method	Manual pairing
Display	Alphanumeric LED
Battery Type	2 × AA, 1.5V
Battery Life	More than 7 hours with alkaline batteries, depending on usage

Lavalier Microphone Specifications

Microphone Model	MT830cW
Microphone Type	Miniature lavalier
Polar Pattern	Omnidirectional
Frequency Response	20 Hz–20 kHz, as listed in the supplied specifications
Output Connector	Four-pin Hirose-style female connector
Cable Length	Approximately 5 ft
Color	Black
Intended Application	Speech and hands-free presentation

Power Specifications

Transmitter Batteries	2 × AA, 1.5V
Batteries Included	No
Typical Battery Life	More than 7 hours with alkaline batteries
Receiver Power Adapter	Included
Adapter Input	100–240V AC, 50/60 Hz
Adapter Output	12V DC, 0.5A
Adapter Polarity	Center-positive

Physical Specifications

Receiver Dimensions (L × W × H)	7.48 × 5.06 × 1.82 inches
Receiver Weight	10.2 oz (290 g)
Bodypack Dimensions (W × H × D)	2.76 × 4.21 × 0.98 inches
Bodypack Weight	3.5 oz (100 g), without batteries
Package Weight	2.305 lbs
Box Dimensions (L × W × H)	13.8 × 11.1 × 4.3 inches