4-35169779 Listening Devices Technical Specifications.pdf

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Attached to
Wireless UHF/FM Tour Guide Listening Devices
Solicitation number
2025-35169779
Issued by
Los Angeles County, California

About this file

This technical specifications document supports a state and local contract opportunity issued by the Superior Court of California, County of Los Angeles for Wireless UHF/FM tour guide listening devices. The Court, the largest unified trial court in the United States with 550 bench officers, 4,500 full-time employees, and 38 locations serving 88 cities across Los Angeles County, is seeking quotes, bids, or proposals for a 200-channel wireless UHF/FM transmitter and receiver system with four receivers per transmitter. Vendors may respond to all or some line items, though the Court may prefer to award the entire bid to a single vendor and is not bound to consider partial bids. Prices must remain valid for 90 days from submission.

The specified system features 200 selectable channels supporting simultaneous use of up to 100 groups, with an approximate transmission range of 200 meters in line-of-sight conditions. Transmitters are equipped with built-in 1300 mAh lithium batteries providing approximately 15 hours of runtime, while receivers feature 900 mAh lithium batteries with approximately 25 hours of runtime. The system includes one-click wireless channel syncing, manual channel selection capability, mute functionality on the transmitter, and single-command receiver shutdown. Additional features include AUX and headphone audio I/O ports, USB charging capability, and a lightweight, portable design suitable for interpretation and presentation contexts. All pricing must be all-inclusive except for applicable taxes, and only new products are accepted; used, refurbished, or alternate brand items will not be considered. Vendors must input requested information into Court documents as failure to do so may result in bids being deemed non-responsive. The bid contact is Salvador Vargas at the Superior Court of California, County of Los Angeles.

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Text version

Listening Devices

Technical Specifications Feature Specification

System Type Wireless UHF/FM tour guide/transmitter and receiver system

Frequency Channels 200 selectable channels; allows simultaneous use of up to 100 groups

Transmission Range Approximately 200 m / 656 ft line-of-sight Transmitter Battery Built-in 1300 mAh lithium, ~15 hours runtime

Receiver Battery Built-in 900 mAh lithium, ~25 hours runtime Channel Setup One-click wireless syncing; manual 001–200 channel selection Mute & Shutdown Transmitter includes mute functionality; can power down all receivers with a single command

Audio I/O AUX input on transmitter (3.5 mm) for external audio; headphone output (3.5 mm) on receiver

Charging USB charging enabled Additional Features Lightweight, portable, designed for interpretation and presentation contexts

Technical Specifications

File details come from the government source that posted it. Updated .