
Specifications
Certifications
Warranty
1 year (90 day warranty on cables and power supply)
Approvals
WEEE, RoHS, CE, FCC, IC
Dimensions
Dimensions
6”L x 5”W x 3”H (15.6 cm x 12.7 cm x 7.85 cm
Electrical
Cord
39"
Audio
Power Output
DC 5.0V 1.1A per bay (22W max)
Frequency Band
2.4 GHz (ISM band)
Audio Frequency Response
(-3dB level)
SNR
74 dB (A-weighted)
THD
0.1% (typical)
Headphone Audio Output
3.5 mm TRRS jack with mono output for headphones, earphones, or neckloop 27 mW maximum @32 ohms
Microphone Input
Internal microphone (disabled when MIC jack engaged) and 3.5 mm phone jack (sleeve) with electret microphone bias, adjustable gain with 63dB range.
Headphone Output
3.5 mm TRRS headphone jack; 25 mW, R 32 ohms
Audio Output
Headphone: Max SSPL 90 111.8dB (EAR 013), 116.8dB (EAR 041) Line: USB-C, Adjustable level
Side Tone
-6 dB below volume, tone variation (Off, Low and High settings available)
Driver Size
23 mm
Max Power Input
30 mW
Sensitivity
118 dB @ 1kHz
Connectivity
Power Input
AC 100-220V 50/60Hz 0.5A (max)
Line Input
USB-C, Adjustable level
RF Output
19 dBm Typical
Charging Connectors
USB-C; Two contacts for use with CHG 412
Plug
3.5mm mono
Construction
Color
Black and clear plastic
Unit Capacity
4 Units
Case Material
Black ABS Plastic
Compatibility
Compatible Units
CHG 404
Compatible Receiver
DLR 400 RCH, DLR 400 ALK, DLT 300 with some limitations and DLR 360 with some limitations
Included Items
Antenna
Internal
Environmental
Operating Temperature Range
14º to 113ºF (-10º to 45ºC)
Shipping
Weight
0.70 lbs (0.3 kg)
General
BAT 010-2
Alkaline, 1.2 Volt
Indicators
Individual Charging Indicators: Blue LEDs light up dividing clear panels
WF
WF R1 CHG 404
DW
DLT 400, DLR 400 RCH(Appropriate USB cables can be used with any CHG 404. See Note.)
Notes
Accepts USB type A plugs, with a USB-C or with a micro-B plug that can connect to the device to be charged.
Power Save
Auto Sleep Mode after 5 minutes of no RF signal from compatible devices
Intercom Mode
100 – 7,300
HzInterpretation and Other Modes
100-11,200 Hz
Range
Up to 900 ft (274 m) (depending upon environmental conditions)
Temp. Range
14° – 113°F (-10° to 45°C)
DLR 400 ALK
Compatible Units DLT 400, DLT 300
DLT 400
Dimensions 4.22"W x 2.60"H x 0.50"D (107.3 mm x 66 mm x 12.6 mm), Weight 3.3 oz (94 g) including battery, Color Black/Silver (Front/Back), Case Material Black ABS plastic, Battery type Lithium Polymer with smart charge built into transceiver; 1800 mAH, Battery life Up to 16 hrs talk time per charge@ 1ch Tx and 1ch Rx, Power Save Auto Sleep Mode after 5 minutes of no RF signal from compatible devices, Charge time 5 hrs. approx., System Voltages OLED 14VDC; RF 5VDC; Logic 3.3 VDC, Operating frequencies 2.4 GHz (ISM band); 2402 – 2476 MHz FHSS, Modulation; FSK
Level) Intercom Mode
100 - 7,200
Hz Other Modes
100 - 11,500 Hz
Security
87-bit encryption (300 Series Compatible), 87+128 bit Encryption, Encryption PIN, Lock for settings
Style
Around-ear speaker
Nominal Impedance
32Ω
Freq. Response
20 - 20kHz
Radio
Modulation
FSK
Power
Battery Type
2 x AAA Alkaline Batteries
Battery Life
Alkaline Disposable (BAT 010-2): Up to 30 hrs
Indicators
Display
LCD shows status: Battery Level, RSSI, Group/Channel #
LEDs
Red LED around Talk button when enabled; Bi-color, changing green and red LED at top
Why Choose SoundPro?
Since 1972, SoundPro has been the trusted source for audio, video, and lighting gear. Whether you're starting your AVL journey or are a seasoned professional, we're here to help you every step of the way.