Sennheiser M4 True Wireless CopperSH-M4-TWS4-COP

Sennheiser MOMENTUM True Wireless 4 - Smart Earbuds with Bluetooth 5.4, Crystal Clear Sound, Comfortable Design, 30 Hours Battery Life and Adaptive ANC - Black Copper

Sennheiser Consumer Audio Momentum 4 Wireless Headphones - Bluetooth Headset for Crystal-Clear Calls with Adaptive Noise Cancellation, 60h Battery Life, Lightweight Folding Design, Black (509266)

Sennheiser Consumer Audio BTD 600 Bluetooth® Dongle - USB-A/USB-C Adapter with AptX Audio Codecs for Stable, Sound - Listen to Music, Make Calls, and Watch Videos