EXTENDED POWER - Provides long-lasting power for Sennheiser SL Tablestand 133-S DW and SL Tablestand 153-S DW, ensuring uninterrupted operation during critical presentations and events. RELIABLE PERFORMANCE - Guarantees consistent and dependable power delivery, maintaining stable performance for your Sennheiser wireless microphone systems in any professional setting. SEAMLESS COMPATIBILITY - Specifically designed for use with SL Tablestand 133-S DW and SL Tablestand 153-S DW, ensuring a perfect fit and optimal functionality without any compatibility issues. PEACE OF MIND - Offers a 2-year limited warranty from Sennheiser, protecting your investment and ensuring long-term reliability and satisfaction with your rechargeable battery.