Included in the battery & charger combo:

2x Premium Rechargeable NiMh Gumstick Batteries

1x USB-C Powered Battery Charger (rated 5V DC)

1x USB-C Cable

This battery is equivalent in dimension to the below gumstick batteries that are commonly used in many Sony/Panasonic/Sharp cassette walkman and Minidisc players:

Sony NH-14WM

Sony NH-10WM

Sony NC-5WM, NC-6WM

Sony NH-9WM

Sharp AD-N55BT

Panasonic RP-BP105

Panasonic NHF-AZ01

Panasonic HF-AZ01, HHF-ZA01T

Panasonic RP-BP61

Aiwa MHB-901

Victor BN-R129

Sanyo HF-A1U

Note: the list above is not exclusive, please check your walkman's user manual for compatibilty.

The battery should suit the following Walkman models(please check the battery dimension for compatibility):

Panasonic

RQ-SX20,RQ-SX21,RQ-SX32,RQ-SX43,RQ-SX45,RQ-SX52,RQ-SX53,RQ-SX72,SL-CT580,SL-CT590,SL-CT780,SL-CT790,SJ-MJ7,SJ-MJ10,SJ-MJ15,SJ-MJ17,SJ-MJ35,SJ-MJ55,SJ-MJ70,SJ-MJ75,SJ-MJ77,SJ-MJ80,SJ-MJ88,SJ-MJ95,SJ-MR100,SJ-MR200,SJ-MR220,SJ-MR230,SJ-MR250,SJ-MW1,SJ-MW2,SJ-MW3,SJ-SW90MD,SJ-SW9MD,SLMP30

Sony

MZ-E25,MZ-E30,MZ-E35,MZ-E44,MZ-E45,MZ-E50,MZ-E500,MZ-E501,MZ-E510,MZ-E55,MZ-E600,MZ-E610,MZ-E70,MZ-E700,MZ-E707,MZ-E710,MZ-E75,MZ-E77,MZ-E7W,MZ-E80,MZ-E800,MZ-E90,MZ-E900,MZ-E909,MZ-E11,MZ-EP11,MZ-EP50,D955,D-E888,D-E905,D-E925,D-E999,D-EJ01,D-EJ1000,D-EJ2000,D-NE1,D-NE10,D-NE20,D-NE730,D-NE830

Minidisc MD Walkman E75、E620、E90、E800、E900、R70、R90、R91、R900、R909、R910、N1

Sharp

MD-MT877H,MD-MT888,MD-MT90,MD-ST55,MD-ST66,MD-ST70,MD-ST700,MD-ST77,MD-ST770,MD-ST880,MD-MT200,MD-MT1900,MD-DS8,MD-MT180,IM-MT66,MD-MT77,MD-MT770,MD-MT866H,MD-MT877,IM-MT70,IM-MT77,IM-MT770,IM-MT877,IM-MT880,IM-MT899H

Aiwa: AM-CL33,AM-F90,AM-HX100,AM-HX150,AM-HX20,AM-HX200,AM-HX30,AM-HX300,AM-HX400,AM-HX50,AM-HX55,AM-HX70,AM-NX1,AM-ST40,PX587,PX787

JVC:XM-P2000,XM-P55,XM-PJ1,XM-PX3,PX5,XM-PX50,XM-PX55,XM-PX55SL,XM-PX70

Kenwood：DMC-M7R,DMC-P33,DMC-P55

iRave：MP300,iMP-350SlimX,iMP-400 SlimX

Philips：EXP 7361 Sanyo：MHB-901  Evolution：MTV,EV-128MRS