SVBONY Aspheric Wide Angle Eyepiece 4mm / 10mm / 23mm (62° AFOV, 1.25″) Size:F9301AC Svbony 62° HD 23mm Eyepiece 7V 1000mAh lithium-ion battery is

7V 1000mAh lithium-ion battery is attached

and do not degrade when getting older

and TF card

working as well as when they were brand new

SVBONY Aspheric Wide Angle Eyepiece 4mm / 10mm / 23mm (62° AFOV, 1.25″) Size:F9301AC Svbony 62° HD 23mm Eyepiece 7V 1000mAh lithium-ion battery isThe SVBONY Aspheric Wide Angle Eyepiece (62 AFOV) is a simple, sharp performing upgrade for 1. 25" telescopes, available in 4mm, 10mm, and 23mm focal lengths. These eyepieces are designed to give a wider, more immersive view than many basic kit eyepieces, making them a popular choice for lunar, planetary, and general deep sky observing. Key Features 62 wide angle apparent field of view for a more spacious, comfortable view Aspheric optical design