The Wireless Headset Battery For Panasonic is a high quality and affordable battery, which is an excellent choice for extending the battery life of your machine. The quality of our batteries is guaranteed, manufactured with high quality materials and circuit boards to ensure durability and performance. Compared to purchg a new machine or OEM battery, our battery is a more cost-effective choice. Compatible Models: For Panasonic – Attune, Attune 3020, Attune 3050, Attune I, Attune II, WX-CH450, WX-CT420, WX-H3030, WX-H3050, WX-T3020 Part Number: For Panasonic – BX-B3030, CE-3030, WX-B3030, WX-B3030M ? NOTICE: Before purchg, please check that your model is compatible. ? Please feel free to contact us with any questions, we do our best to provide you with high quality products and services!Totally meets the OEM battery specifications to support normal operation and reliable performance. High quality materials and circuit boards are used to ensure durability and high performance. A more cost-effective solution to the problem of short Wireless Headset battery life, compared to purchg a new machine or OEM battery. Product Specifications– Volt: 3.7V, Capacity: 1050mAh / 3.89Wh, Type: Li-ion, Dimension: 53.03 x 35.55 x 7.29mm, Weight: 52.3g. Fit Model: Attune, Attune 3020, Attune 3050, Attune I, Attune II, WX-CH450, WX-CT420, WX-H3030, WX-H3050, WX-T3020, Part number: BX-B3030, CE-3030, WX-B3030, WX-B3030M.