2 x AAA Rechargeable batteries 500 mAh for BT 1100 BT 1200 BT 1600 BT 1700 NEW

(eg: BT1000 BT1500 BT1100 BT1200 BT1600 BT1700 Diverse 5000, 6000 series, Synergy 3000/4000/5000 series, Studio 1100/1500/3100/3500 Series, BT Stratus, BT Graphite, Freestyle 310/350/610/650/710/750 etc. etc.).

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