{"product_id":"ld-systems-u504-7-hhd2-dual-wireless-mic-handheld-system","title":"LD Systems U504.7 HHD2 | Dual Wireless Handheld Mic System | 470–490 MHz with OLED Display","description":"\u003ch2\u003eDual Wireless Microphone System\u003c\/h2\u003e The \u003cstrong\u003eLD Systems U504.7 HHD2\u003c\/strong\u003e is a dual-channel UHF wireless microphone system featuring two dynamic handheld transmitters with cardioid capsules. Designed for professional speech and vocal performance, this USA-only 470–490 MHz system delivers clear, low-latency audio with true diversity reception, automatic channel scanning, and simple one-touch IR syncing. \u003ch2\u003eLD Systems U504.7 HHD2 Competitive Differences\u003c\/h2\u003e \u003cul\u003e \u003cli\u003eTrue diversity reception with dual OLED displays for real-time monitoring\u003c\/li\u003e \u003cli\u003eTwo dynamic handheld mics with interchangeable capsules and 96 selectable channels\u003c\/li\u003e \u003c\/ul\u003e \u003ch2\u003eLD Systems U504.7 HHD2 Description\u003c\/h2\u003e The \u003cstrong\u003eLD Systems U504.7 HHD2\u003c\/strong\u003e brings professional-grade wireless technology to live sound applications with a robust, user-friendly design. Operating in the 470–490 MHz band (USA only), this system features true diversity reception to minimize dropouts and ensure stable signal transmission, even in crowded RF environments.\r\n\r\nEach handheld transmitter uses a cardioid dynamic capsule with a 60 Hz – 16 kHz frequency response, making it well-suited for vocals and speech. With 96 selectable channels across 8 groups, multiple systems can operate simultaneously without interference. The switchable RF power output (2, 10, or 30 mW) offers flexibility for various venue sizes, with a range exceeding 100 meters in open spaces.\r\n\r\nOLED displays on both the receiver and handheld units clearly show battery life, group\/channel info, frequency, and signal strength. Setup is fast and efficient thanks to IR sync and auto channel scanning, while the pilot tone squelch circuit adds fail-safe operation by rejecting unwanted signals.\r\n\r\nHoused in a rugged 19” rack-mountable chassis, the receiver provides both balanced XLR and unbalanced TS outputs for each channel, as well as mix outputs and a headphone jack for direct monitoring. This system is ideal for houses of worship, corporate AV, mobile DJs, and event production companies.\r\n\r\n\u003ch3\u003eModel Features\u003c\/h3\u003e \u003cul\u003e \u003cli\u003eDual wireless system with two handheld dynamic microphones\u003c\/li\u003e \u003cli\u003e96 channels (8 groups of 12 channels)\u003c\/li\u003e \u003cli\u003eTrue diversity receiver with dual antennas\u003c\/li\u003e \u003cli\u003eOLED displays on transmitter and receiver\u003c\/li\u003e \u003cli\u003eIR sync and auto frequency scan for fast setup\u003c\/li\u003e \u003cli\u003eSwitchable RF output power: 2 \/ 10 \/ 30 mW\u003c\/li\u003e \u003cli\u003ePilot tone squelch for interference protection\u003c\/li\u003e \u003cli\u003eInterchangeable mic capsules for different vocal needs\u003c\/li\u003e \u003c\/ul\u003e \u003ch3\u003eModel Specifications\u003c\/h3\u003e \u003cul\u003e \u003cli\u003eTransmission Frequency: 470–490 MHz\u003c\/li\u003e \u003cli\u003eMicrophone Type: Dynamic, cardioid\u003c\/li\u003e \u003cli\u003eFrequency Response (Mic): 60 Hz – 16 kHz\u003c\/li\u003e \u003cli\u003eTransmitter Power Output: 2 \/ 10 \/ 30 mW (switchable)\u003c\/li\u003e \u003cli\u003eReceiver Frequency Response: 30 Hz – 16 kHz\u003c\/li\u003e \u003cli\u003eS\/N Ratio: \u0026gt;100 dB (receiver), \u0026gt;95 dB (transmitter)\u003c\/li\u003e \u003cli\u003eDistortion (THD): \u0026lt; 0.1%\u003c\/li\u003e \u003cli\u003eOutputs: 2 x XLR, 2 x 1\/4\" TS, XLR \u0026amp; 1\/4\" mix out, headphone out (6.3 mm TRS)\u003c\/li\u003e \u003cli\u003eReceiver Dimensions: 19 x 1.75 x 7.9 in (484 x 44 x 200 mm)\u003c\/li\u003e \u003cli\u003eHandheld Mic Dimensions: 10.1 x 2 in (257 x 51 mm)\u003c\/li\u003e \u003cli\u003eReceiver Weight: 4.5 lb (2.05 kg)\u003c\/li\u003e \u003cli\u003eHandheld Mic Weight: 0.55 lb (0.25 kg)\u003c\/li\u003e \u003cli\u003eOperating Time: \u0026gt;10 hours (2 x AA batteries)\u003c\/li\u003e \u003c\/ul\u003e \u003ch3\u003eWhat's In The Box\u003c\/h3\u003e \u003cul\u003e \u003cli\u003eDual-channel receiver\u003c\/li\u003e \u003cli\u003e2 x handheld dynamic microphones\u003c\/li\u003e \u003cli\u003e2 x antennas\u003c\/li\u003e \u003cli\u003eAudio cable\u003c\/li\u003e \u003cli\u003ePower adapter\u003c\/li\u003e \u003c\/ul\u003e","brand":"LD Systems","offers":[{"title":"Default Title","offer_id":50153072230682,"sku":"113430","price":879.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0894\/2714\/9082\/files\/ld-systems-u504-7-hhd2--dual-wireless-mic-handheld-system.webp?v=1756136836","url":"https:\/\/squarecable.com\/products\/ld-systems-u504-7-hhd2-dual-wireless-mic-handheld-system","provider":"SquareCable","version":"1.0","type":"link"}