WHOLE METAL UHF WIRELESS In Ear Monitor SYSTEM Uhf-band frequencies frequency agile over a 25 MHz bandwidth Ultra-compact design with 100 selectable UHF frequencies for interference-free performance (Up to 20 systems can operate simultaneously) and an operating range of 300-feet. Ideal for both small and large venues. LCD display low-battery indicator on the receiver Compatible with professional in-ear monitor earbuds and consumer headphones with 3.5mm jack

[BLUETOOTH 4.1 + APTX] - SoundPEATS Q12 Bluetooth headphones support two devices connected simultaneously and allow automatically reconnecting if paired successfully before. They own high fidelity stereo sound with aptX codec. The headphones are widely compatible with most cell phones, such as iPhone and Android phones, and also plenty of other Bluetooth devices. [LONG-LASTING & LIGHTWEIGHT] - Upgraded built-in lithium batteries support up to 8 hours talk / music time (depends on volume and audio content) for prolonging enjoyment. Only charge for 1-2 hours can get full energy back. The surprisingly ultra light design at only 0.53 ounces net weight barely makes you feel anything during workout. [BUILT-IN MAGNETS] - Both earpieces are with built-in magnets which can attach to each other like a necklace around your neck when not in use. This elegant design helps earphones storage and keeps you away from getting entangled with the wire. You'll find it most convenient to carry the earphones around for any outdoor activities, such as hiking, cycling, sports, exercise, and more.