The NI-MH AAA rechargeable battery is an eco-friendly, high-quality alternative to disposable alkalines for your cordless landline house. Perfect for Panasonic Gigaset handsets, it features a 1.2V voltage and an impressive 550mAh capacity, ensuring crisp calls with extended life. Each pack contains four rechargeable batteries, allowing you to charge them and start using them right away. This rechargeable battery pack not only saves you money in the long run but also reduces electronic waste significantly. Plus, it's RoHS and REACH compliant, ensuring it's safe for both you and the environment. Say goodbye to disposables and hello to the future of cordless landline technology with NI-MH AAA rechargeable batteries.