Example output
Hello! Based on your criteria and budget of 300 dollars, here are some phones that might suit your needs:
Xiaomi Redmi Note 10 Pro - $279
6.67-inch AMOLED display
5020mAh battery
Snapdragon 732G processor
64 MP + 8 MP + 5 MP + 2 MP rear camera
Samsung Galaxy A52 - $299
6.5-inch Super AMOLED display
4500mAh battery
Snapdragon 720G processor
64 MP + 12 MP + 5 MP + 5 MP rear camera
Google Pixel 4a - $349 (slightly above your budget, but it may be worth it)
5.8-inch OLED display
3140mAh battery
Snapdragon 730G processor
12.2 MP rear camera
Regarding earphones, it depends on your preferences and additional budget. However, here are some popular options:
Apple AirPods - $129
Samsung Galaxy Buds - $129
Jabra Elite 65t - $99
I hope this helps you find the phone and earphones that best suit your needs. Feel free to ask me any further questions if you have any!