The UHF wireless receiver is designed for monitoring instruments or scenes and simultaneous translations. With reliable and stable performance, it is very practical to use. Features: 520-600MHz UHF (ultra high frequency) wireless transmission, stable and reliable performance. Digital LED display for easy reading and convenient use. The included rear clamp makes it easy to use and carry. The composite anti-interference circuit is designed to use multiple bodypack receivers simultaneously. ) Includes earbuds (3 pairs of ear tips in total – S or M or L, these L are assembled) that are comfortable to wear and offer rich, gentle sound and powerful bass. Thanks za understanding. Technical data: Black color Material: plastic Frequency Range: 520-600 MHz Operating Current: 115mA (TYPE) Frequency Response: 20 Hz-15 KHz (capture point -6 dB) S or N ratio: andgt 60dB Reception Sensitivity: Better than 8dbuv andgt 45dB Product Size (Without Battery): 90x64x25 mm or 3,54x2,52x0,98 inch Product Weight: 76g or 2,69 oz Package Size: 25,1 x 13,2 x 4,5 cm or 9,88 x 5,20 x 1,77 inch Package Weight: 125g or 4,41oz List of packages: 1 x bodypack receiver 1 x earbuds (a pair of ear tips is already assembled) 2 pairs of ear tips (spare)