Kastar 3-Pack 2.4V 1000mAh Ni-MH Battery Replacement for Sony BP-HP550-1 BPHP5501, BP-HP550-11 BPHP55011Battery, Sony MDR-IF245RK MDRIF245RK, MDR-RF4000 MDRRF4000, MDR-RF4000K MDRRF4000K Headphone - MH-3B-RF4000-A

• UPC   697067263907
• High Capacity: No longer to worry about the endurance of the batteries, Kastar high capacity battery will provide ultra strong power for your headphone to performance well and operate longer. Battery Specification: Battery Type: Ni-MH. Battery Voltage: 2.4V. Battery Capacity: 1000mAh. Battery Dimensions: 1.8" x 0.9" x 0.45" (46.00 x 23.00 x 11.3mm). Safety Assurance: Kastar add mix-protection additive to the cathode of batteries, protect the material from degradation in the progress of charge and discharge, extend lifespan up to 1200 cycles. Low self-discharge: Embedded seal structure expand the space of crystal lattice, make more room for hydrogen, so Kastar batteries will holds power longer than others. Environmental Protection: Ni-MH eco-friendly cell, doesn't contain Hg/Cd/Pb, makes no pollution to the environment, and using DBCK steel shell which can protect the battery against explosion due to overpressure.