Anker R50iTrue Wireless Earbuds with Soundcore in Blue A3949H31 is the model. Large 10mm Drivers: These drivers have a punchy bass and strong sound. 22 Preset EQs: Use the Soundcore app to customize the way your music sounds. Ergonomic and Lightweight Fit: The tiny earbuds are ideal for extended listening sessions because of their lightweight design. They are conveniently carried and stored in a small case with a lanyard. All-Day Playtime: With the case, you can play for ten hours on a single charge and have power for a total of thirty hours. AI-Clear Calls: AI processing combined with two microphones makes sure your voice is heard clearly and crystal clear. Quick Charging: Your earbuds can play for an additional two hours after a quick 10-minute charge. IPX5 Water-Resistant: True Wireless Soundcore R50i