Get 10% off with a follow! ✨ Set of 1 gum battery and LiitoKala charger (Lii-100B) Convenient as you can see the charging progress! Includes a universal adapter (The Type-C port at the bottom is recessed, making it a "defective" item. The second port is normal. The USB-A port is also normal, so there's no problem charging the gum battery) 【Compatible with NH-14WM NH-10WM HHF-AZ201S HHF-AZ01 RP-BP61 ADN55BT MHB-901】 【Product Description】 Can be used for audio devices such as MD and CD players. Ni-MH square nickel-metal hydride rechargeable battery Number of charging cycles: Approximately 1000 times Voltage: 1.2V Capacity: 1450mAh *Although new, it has been charged once to confirm that the maximum capacity has not decreased significantly. Confirmed to work with MD Walkman. ☆Important☆ Cannot be used with SONY Hi-MD MZ-RH1, MZ-NH3D, MZ-DH10P, MZ-EH1 ＜Charger Specifications＞ - Brand: LiitoKala - Model: Lii-100B - Input voltage: DC 5V 1A - Output voltage: DC 4.2V 500mA/1000mA - Compatible battery types: AA, AAA, 18650, 14500, 18490, 26650, etc. Automatically detects and charges nickel-metal hydride, nickel-cadmium, and lithium-ion batteries. Built-in protection circuit, with overcharge protection, over-discharge protection, and short-circuit protection functions. You can change the charging current by long-pressing the SELECT button (0.5A, 1A) Can also be powered by a computer's USB-A port. We will test the product before shipping. If there is a problem with the product, please contact us before leaving a review. We will respond. Please feel free to consult us about adding more batteries. It is also possible to switch to DoublePow. Please take a look at my profile and other listings too! → #falca_store #GumBattery #Sony #MDPlayer #NickelMetalHydride #Eneloop #NiMH Cannot be used with the following products: SONY Hi-MD MZ-RH1, MZ-NH3D, MZ-DH10P, MZ-EH1