Apple AirPods 1st Generation A1602

Apple AirPods 1st Gen (model A1602) earbuds and case. Used condition as seen from photos - fair few scuffs here and there. Right bud looses charge/disconnects after about 15 mins. If you put in and out of the case again a few times it sometimes comes back? Not really sure what's wrong with it might need recalibrating? No cable or box (but will be sent securely).

eBay