The Sennheiser 2-pack battery set provides a reliable power source for various Sennheiser headphone models. These Li-Ion batteries are specifically designed for use with devices such as the IS410, RI410, and RS4200, offering a cost-effective alternative to original batteries. With a voltage of 3.7 volts and a capacity of up to 150 mAh, these batteries ensure long-lasting performance. They are rechargeable and easy to handle, ensuring that your headphones are always ready for use. The set includes two batteries, making them ideal for use with different Sennheiser devices. Their compact size and lightweight design make them a practical choice for everyday use.

• Compatible with a variety of Sennheiser headphone models
• Rechargeable Li-Ion technology for long-term use
• High capacity of up to 150 mAh for extended operating times
• Lightweight design at only 6 grams per battery.