Yamaha YHT-3920UBL 5.1-Channel Home Theater in a Box System with Bluetooth Bluetooth (SBC). 4K Ultra HD pass-through The YHT-3920UBL is equipped with Bluetooth functionality to let you easily enjoy wireless music playback from smartphones and other devices HDCP 2.2 (1 in / 1 out). Rated Output Power (20Hz-20kHz, 2ch driven): 70 Watts Virtual CINEMA FRONT & Extra Bass 5-channel speaker package with 8 inches 100 W powered subwoofer The Compressed Music Enhancer from Yamaha is now optimized for Bluetooth audio transmissions to ensure that your music will have vivid, lively sound quality during wireless playback.