The Angel Next Door Spoils Me Rotten Wireless Earphones Mahiru Shiina Unused and unopened. The Angel Next Door ONKYO Battery: Built-in lithium polymer battery Power Capacity: Earphones (per side) 55mAh, Charging case 300mAh Rated Input: DC 5V / 300mAh Continuous Talk Time: Approximately 6 hours Continuous Standby Time: Approximately 75 hours Full Charge Count: 1.5 times (*When the charging case is fully charged) Earphones (per side): W16 x H20 x D21 (mm) Charging Case: W55 x H33 x D25 (mm) Amane Fujimiya: Taito Ban Mahiru Shiina: Manaka Iwami Itsuki Akazawa: Taku Yashiro Chitose Shirakawa: Haruka Shiraishi Original Work: Saeki-san (GA Bunko / SB Creative) Character Design: Hanekoto