vintrons 570mAh Battery For Sony PlayStation 3 Wireless Qwerty Keypad, CECHZK1UC, Please ensure both model and battery part number are matched with your device. - Compatible Model: SONY CECHZK1UC, PlayStation 3 Wireless Qwerty Keypad, PS3 Wireless Qwerty Keypad, - Compatible Battery Part Number: SONY MK11-3023, - RoHS approved for toxic free. - CE and ISO9001 Certificate for quality assurance.