620mAh AHB622540N01 Battery Replacement Compatible with Sennheiser HD 4.40, HD 4.50, Urbanite XL, Momentum 2.0 Wireless Bluetooth Headphones

MPF Products 600mAh AHB622540N01 Battery Replacement Compatible with Sennheiser HD 4.40, HD 4.50, Urbanite XL, Momentum 2.0 Wireless Bluetooth Headphones

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

Sennheiser MOMENTUM True Wireless 4 Smart Earbuds with Bluetooth 5.4, Crystal-Clear Sound, Comfortable Design, 30-Hour Battery Life, Adaptive ANC, LE Audio and Auracast - Black Graphite