Quick overview from the supplier:
Sennheiser Momentum 3 Wireless Sandy White, Mic, Battery time up 17 hrs
Article number (SKU) - 508234 (black), 508235 (white)
Ear coupling - Around ear
Transducer principle - dynamic
Acoustic principle - closed
Adapter - 3.5mm, angled
Cable length - 1.4m
Weight - 305g
Frequency response (speaker) - 6 Hz to 22,000 Hz
Impedance - Active: 470 Ω, Passive: 100 Ω
Sound pressure level (SPL) - 118 dB (1 kHz, 1V)
Total harmonic distortion (THD) - < 0.3 %
Microphone pick-up pattern - Dual Beamforming
Wearing style - Around-ear
Transducer size - 42 mm
Charging time - 3 hrs
Operating time - 17 hrs
Bluetooth version - Bluetooth 5.0
Bluetooth profiles - AVRCP, A2DP, HFP, HSP, BAS, DIS
Bluetooth Audio Codec - AptX™, AptX™ Low Latency, AAC, SBC
Active Noise Cancellation - True
https://www.sennheiser-hearing.com/en-US/p/momentum-wireless/
