Futaba S10730 Slant Tx 2PB/KA Battery Case This is the 8 'AA' battery holder that slides into the Futaba 2PB or 2PBKA radios This is the 8 'AA' battery holder that slides into the Futaba 2PB or 2PBKA radios; Slant Tx Battery Case 2PB/KA This is the 8 'AA' battery holder that slides into the Futaba 2PB or 2PBKA radios; Slant Tx Battery Case 2PB/KA