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Specification
AudioInput : Dual Mics
AudioOutputMode : Stereo
AudioOutputMode1 : Stereo
AudioOutputMode2 : Surround
AudioOutputType : Headphone
Brand : Williams AV
BulletPoint1 : Includes: (1) FM T55 Transmitter, (4) PPA R38N Receivers, (4) EAR 022 Surround Earphones, (2) NKL 001 Neckloops and (1) IDP 008 ADA Wall Plaque
BulletPoint2 : Operating Frequencies: 72.1-75.9MHz , 17 wideband channels (selectable)
BulletPoint3 : Total Harmonic Distortion: Less than 0.25% @ 1kHz (RF output)
BulletPoint4 : Rack Mount: Standard 19" Rack, one EIA rack space high, 1/2 space wide
BulletPoint5 : Ethernet: RJ-45; 10/100 Base-T IEEE 802.3 compliant, unique MAC address
BulletPoint6 :
CompatibilityOptions : Bluetooth 5.4
CompatibleDevices : Compatible with iPhone, Samsung, Google and more android smartphones
CompatibleDevices1 : Speaker
CompatibleDevices2 : Smartphone
CompatibleWithVehicleType : Compatible with more vehicles
ConnectivityTechnology : Bluetooth 5.4
ConnectivityTechnology1 : Wi-Fi
ConnectivityTechnology2 : Ethernet
ConnectorGender : /
ConnectorType : 2.5mm Jack
ControllerType : Button Control
ControlType : Media Control
ExternallyAssignedProductIdentifier : 6973383079458
HardwareInterface : bluetooth
HardwareInterface1 : usb
HardwareInterface2 : bluetooth_5
HardwareInterface3 : bluetooth
HumanInterfaceInput : buttons
InstallationType : Wall
ItemName : Williams AV FM 558 Large-Area Dual FM Plus and Wi-Fi Assistive Listening System with (1) FM T55 Transmitter, (4) PPA R38N Receivers, (4) EAR 022 Earphones, (2) NKL 001 Neckloops
ItemPackageDimensions_Height : 5.6 centimeters
ItemPackageDimensions_Length : 11.3 centimeters
ItemPackageDimensions_Width : 7.5 centimeters
ItemPackageQuantity : 1
ItemTypeKeyword : mp3-player-radio-transmitters
Manufacturer : Williams AV
Material : Premium Crafted
MediaType : USB Flash Drive
ModelName : SW-XC968
ModelNumber : FM 558
MountingType : Plug into the car cigarette lighter socket
NumberOfChannels : 17
NumberOfItems : 1
NumberOfPorts : 2
PartNumber : FM 558
PowerSourceType : Battery Powered
ProductDescription :

Williams AV FM 558 Large-Area Dual FM Plus and Wi-Fi Assistive Listening System with (1) FM T55 Transmitter, (4) PPA R38N Receivers, (4) EAR 022 Earphones, (2) NKL 001 Neckloops

Key Features

• Includes: (1) FM T55 Transmitter, (4) PPA R38N Receivers, (4) EAR 022 Surround Earphones, (2) NKL 001 Neckloops and (1) IDP 008 ADA Wall Plaque

SPECIFICATIONS

FM T55 Transmitter:

• Operating Frequencies: 72.1-75.9MHz , 17 wideband channels (selectable)
• Frequency Accuracy: ± 2ppm stability, 0-50°C
• Deviation: ± 75kHz maximum
• Pre-Emphasis: 75 microsec
• Frequency Response: 31-16000Hz, ±3 dB
• Signal-to-Noise Ratio: 67dB Transmited RF
• Total Harmonic Distortion: Less than 0.25% @ 1kHz (RF output)
• Common Mode Rejection: 57dB @ 1kHz, Mic or Line
• Rack Mount: Standard 19" Rack, one EIA rack space high, 1/2 space wide
• Ethernet: RJ-45; 10/100 Base-T IEEE 802.3 compliant, unique MAC address
• Weight: 3.2 lbs

PPA R38N Receiver:

• Channels: 17, accessed via menu
• Intermediate Freq.: 75kHz
• FM Deviation: 75kHz
• De-Emphasis: 75µS
• Display Screen: 1" OLED
• Sensitivity: 2µV at 12dB Sinad with squelch defeated
• Input Overload: 100mV
• Frequency Response: 200–15kHz
• Modulation: FM, +/- 75kHz peak deviation
• Signal-to-Noise Ratio: 65dB @ 1.0V
• Receive Antenna: Integral with earphone/headphone cord
• Audio Output: 35mW at 16Ω
• Supplied Earphone: Stereo, earbud-type with foam cushion, 3.5mm plug, 32Ω
• Weight: 4.6oz

EAR 022 Earphones:

• Plug: 3.5mm mono
• Driver Size: 23mm
• Nominal Impedance: 32Ω
• Freq. Response: 20-20kHz
• Max Power Input: 30mW
• Sensitivity: 118dB @ 1kHz
• Weight: 15g

ProductSiteLaunchDate : 2019-10-02T00:00:00.000-07:00
SafetyWarning : Easy to plug and use.
Size : Small
Style : Modern
SupplierDeclaredDgHzRegulation : unknown
SupplierDeclaredHasProductIdentifierExemption : 1
SupportsBluetoothTechnology : 1
UnitCount : 1
WarrantyDescription : 1
WirelessCommStandard : bluetooth