Philips TAT5506BK/00, True Wireless Stereo (TWS), Calls/Music, 2.26 oz (64 g), Headphones, Black Philips TAT5506BK/00. Product type: Headphones. Connectivity technology: True Wireless Stereo (TWS), Bluetooth. Recommended usage: Calls/Music. Wireless range: 393.7" (10 m). Weight: 2.26 oz (64 g). Product color: Black