WORLD’S FIRST DUAL-LINK aptX LOW LATENCY Bluetooth Transmitter: Simultaneously stream audio to 2 headphones with zero lip-sync delay while watching TV, movies or gaming. EXTENDED RANGE & AUTO-RECONNECT: Bluetooth Class 1 technology transmits audio signals up to 100ft / 30m. Easy to pair and auto-reconnects to the last 2 paired devices. NO CHARGING REQUIRED: No built-in battery. Use your TV's USB port and it powers up automatically when you turn on TV. Or use any phone charger, PC USB or other 5V USB outlet. Never worry about charging. COMPUTER USB Audio Support: Ideal for PC use since it supports digital USB audio output. NO need any additional AUX cables. IMPORTANT NOTICE: 1) Please test your TV's audio output before purchase. Plug in a pair of wired headphones/earbuds into your TV's audio output to check if it works. If your TV only has optical output, please consider the Avantree Oasis or Audikast (ETA: 201711) instead. 2) Works with ANY Bluetooth compatible device but for low latency please ensure your headphones/speakers support aptX-LL (or use our certified Avantree Audition Pro, Clipper Pro or Torpedo plus). 3) If you need the portable version of this transmitter choose Avantree Priva IIA.