Listen Tech LWS-04B-W1 ListenWIFI 2-Channel Wi-Fi Assistive Listening System with 4 Receivers
Usually arrives in 5-9 business days.
The LWS-04B-W1-D is a complete two-channel ListenWIFI assistive listening system with Dante audio connectivity, designed for houses of worship, theaters, classrooms, conference rooms, auditoriums, and other public venues. The system combines the LW-170-02 ListenWIFI Dante audio server with four LWR-1050 Wi-Fi audio receivers, four stereo headphones, two advanced neck loops, a four-unit docking station, hearing assistance signage, breakaway lanyards, and a rack-mounting kit. Using the venue's existing Wi-Fi network, ListenWIFI streams high-quality audio directly to compatible smartphones and tablets through the free ListenWIFI mobile app or to the included dedicated receivers, providing flexible listening options for guests who need additional audio assistance.
The included LW-170-02 audio server accepts Dante digital audio from a compatible networked audio system and supports two mono audio channels or one stereo channel. Each server accommodates up to 500 listening devices when connected to properly configured network infrastructure, with additional servers available to expand system capacity and channel availability. The server connects to the network through Ethernet and delivers audio to listening devices over an existing 2.4 GHz or 5 GHz Wi-Fi network. Compatible wireless access points supporting Wi-Fi 4 (802.11n) or newer with WMM enabled are required. The system delivers a frequency response of 20 Hz to 20 kHz, with published system latency of approximately 40 to 60 milliseconds depending on network conditions and connected devices.
The four included LWR-1050 Wi-Fi audio receivers provide dedicated assistive listening devices for guests who prefer not to use personal smartphones or who require venue-provided equipment. Each receiver features a rechargeable, field-replaceable lithium-ion battery with up to seven hours of continuous audio streaming, a 3.5 mm headphone connection, an OLED display, and accessible channel and volume controls. Four LA-165 stereo headphones are included for personal listening, while two LA-438 advanced neck loops provide inductive audio transmission to compatible hearing aids equipped with telecoils. The LA-482 four-unit docking station allows the receivers to be conveniently stored, charged, and programmed between uses.
ListenWIFI Manager for Windows provides centralized system configuration and management, including server settings, receiver profiles, firmware updates, and mobile app customization. Facilities can personalize the ListenWIFI mobile app with welcome screens, channel names, images, branding, and other venue information. QR code channel access simplifies listening for smartphone users, while optional LA-490 Listen Beacons support automatic channel selection based on a listener's location. Public address override functionality allows designated announcements to temporarily interrupt the selected listening channel and reach connected ListenWIFI listeners. The included LW-327 rack mount supports installation of the audio server in a standard 19" equipment rack, while the LW-307 hearing assistance signage identifies the availability of the system to visitors.
Installation Note: This system requires an existing, properly configured Wi-Fi network with compatible wireless access points and Ethernet connectivity. Wireless access points, network switches, and other network infrastructure are not included. The server supports up to 500 listening devices, although actual performance depends on network configuration, available bandwidth, and wireless coverage. Optional LA-490 beacons are required for location-based automatic channel selection. Assistive listening compliance requirements vary by venue and seating capacity, and additional receivers or neck loops may be required.
| Audio Server | Listen Technologies LW-170-02 ListenWIFI 2-Channel Wi-Fi Audio Server with Dante |
|---|---|
| Audio Channels | 2 Mono Channels or 1 Stereo Channel per Server |
| Maximum Listening Devices | Up to 500 per Server, Depending on Network Infrastructure |
| Audio Network Connectivity | Dante and AES67-Compatible Digital Audio over Ethernet |
| Dante Audio Format | 24-Bit, 48 kHz |
| Wi-Fi Streaming Format | 16-Bit, 48 kHz |
| Wireless Network | Existing 2.4 GHz and 5 GHz Wi-Fi Network |
| Wireless Access Point Requirements | Wi-Fi 4 (802.11n) or Newer with WMM Enabled |
| Audio Streaming Bandwidth | Approximately 125 kbps per Listening Device |
| Frequency Response | 20 Hz - 20 kHz (±1 dB) |
| Signal-to-Noise Ratio | Greater than 74 dB (System) |
| Total Harmonic Distortion | Less Than 1% at Nominal Level |
| Dynamic Range | 86 dB at Maximum Level |
| System Latency | 40 - 60 ms, depending on Network, Traffic, QoS, and Listening Device |
| Ethernet Streaming Port | RJ-45, 10/100/1000 Mbps |
| Dante / AES67 Network Port | RJ-45, 100 Mbps |
| Smartphone Compatibility | iOS and Android Devices Using the ListenWIFI Mobile App |
| Dedicated Receivers | (4) LWR-1050 ListenWIFI Wi-Fi Audio Receivers Included |
| Receiver Headphone Connection | 3.5 mm TRRS, CTIA-Compliant |
| Receiver Display | 64 x 128 Pixel OLED Display |
| Receiver Battery | 1200 mAh Rechargeable, Field-Replaceable Lithium-Ion Battery |
| Receiver Battery Life | Up to 7 Hours of Continuous Audio Streaming |
| Receiver Charging Time | Less Than 4 Hours from Fully Discharged |
| Receiver Charging Method | Included LA-482 Docking Station or Compatible Micro-USB Charging Connection |
| Audio Routing | Dante Controller |
| Channel Selection | Manual Receiver Selection, Mobile App Selection, and QR Code Channel Access |
| Automatic Channel Triggering | Supported with Optional LA-490 Listen Beacons |
| Public Address Override | Supported for Announcements to Connected ListenWIFI Listeners |
| System Management Software | ListenWIFI Manager for Windows |
| System Expandability | Additional ListenWIFI Servers for Increased Listening Capacity and Audio Channels |
| Rack Mounting | Standard 19" Equipment Rack, 1RU, with Included LW-327 Rack Mount |