電池手機殼 - Casebus 經典電池手機殼，可攜式充電殼，支援無線耳機，超薄可攜式可充電電池組充電 - QUINN - Casebus

The bulge in my pocket is barely there, which shocked me for a full battery pack. My wireless earbuds synced right through the case while it juiced my phone from 20% to full, and the slim profile means I don’t even notice it’s on.

I’ve had it about two weeks and the extra battery has saved me on long commutes more than once, charges my phone up from 20% to full without bulking up the case. The cutout for wireless headphones works perfectly too, so I can still use my earbuds while it’s on.

It’s honestly so slim I forget it’s even on, and the fact that I can charge my wireless earbuds right through it is a lifesaver on my commute. The battery pack gives me a solid full extra charge before I need to plug the case itself in.