3 Works with wired Apple EarPods or wireless headphones. 4 Allows your iPhone to sync with your PC or laptop without having to remove the case.
eBay
NFC DIY Picture Ink Phone Case for iPhone 16 15 14 13 Pro Max DIY Case Screen Phone Cover Cartoon Protection Funda Battery Free
Aliexpress UK
The most important reason is the conversion rate. This battery case supports iPhone earphones, besides, also compatibles with iPhone AirPods or any other wireless Bluetooth headphone accessories. Provides 180% extra battery life for your iPhone 11 Pro.
eBay
8/10*18650 Power Bank Cases Battery Holder Portable Dual USB Type C Charge Shell for iPhone Xiaomi Huawei 18650 Battery Cases
Aliexpress UK
For iPhone 12/13 /14 Pro Max ,7000mAh,Rated capacity:4000-4500mAh. For iPhone 13 Mini ,6000mAh,Rated capacity: 3500-4000mAh How to use For iPhone 12/13/13 Pro,7000mAh, Rated capacity:4000-4500mAh. This product is designed as protective backup battery case, which can protect your cell phone well.
eBay
New-tech NFC Function Phone Case For Iphone 15 14 13 Pro Max DIY Cases E Ink Screen Phone Cover Cartoon Girl Fundas Battery Free
Aliexpress UK
Battery capacity: 6800mAh. Storage/transport temperature: -20 ° C ± 50 ° C.
eBay
8X18650 Power Bank Cases Battery Holder Dual USB Type C Charge DIY Shell for iPhone Xiaomi Huawei 18650 Battery Case Storage Box
Aliexpress UK
eBay
10/8*18650 Power Bank Battery Box Holder Portable Dual USB Type C Charge Shell for iPhone Xiaomi Battery Cases Detachable Cases
Aliexpress UK
Smart Battery Powercase For iPhone 11 Pro. White - iPhone 11 Pro Battery Case. increases battery life up to 250%. (5.8 in display).
eBay
8/10*18650 Power Bank Cases Battery Holder Portable Dual USB Type C Charge Shell for iPhone Xiaomi Huawei 18650 Battery Cases
Aliexpress UK
③ Works with wired Apple EarPods or wireless earphone. ④ Allows sync your iPhone to your PC or laptop without removing the case. Easily fit in your hand, pocket, or purse. Perfect for on the go. Clear case design shows the precise structure of the battery.
eBay
NEWDERY 4700mAh Battery Charger Case for iPhone 6/7/8/SE Portable Rechargeable Charging Case Battery Pack Power Bank Cover
Aliexpress UK
For iPhone 11 Pro ,5200mAh,Rated capacity: 3000-3500mAh. For iPhone11 P ro Max ,7000mAh,Rated capacity: 4000-5500mAh. For iPhone11 ,7000mAh,Rated capacity: 4000-5500mAh.
eBay
22.5W DIY Battery Charger Case Transparent Fast Charging Case For 6PCS 18650 20000mAh Battery Charging Box For iPhone Samsung
Aliexpress UK