Product Description Code Red Headsets sells a new aftermarket replacement Battery for Kenwood NB33L. Kenwood NX210 / NX210G / NX 410 /NX 411/ TK2180/TK3180/TK5410/TK5210/TK5210G/TK5310/TK5310G Voltage: 7.4V Capacity: 1900 mAh Type: Li-Ion