Genuine Sony Rechargeable Battery BP-HP550-11 for Sony MDR-RF970RK, RF970R, RF925RK, RF925R, RF912RK, RF4000K, IF245RK, RF860RK, RF855RK, RF850RK, RF840RK, RF811RK, RF810RK Headphones

Note! Choose correct battery > Check your Headphone model (printed under charging tower). The battery has on the back side a slot with cross bars at both ends (see Pics). The HP550 battery will NOT fit Sony model MDR-RF995R which use another battery HP800-11 (search for B07J1VWBPS. This product listing is for SONY battery BP-HP550-11 for Sony MDR-RF970RK, RF970R, RF925RK, RF925R, RF912RK, RF4000K, IF245RK, RF860RK, RF855RK, RF850RK, RF840RK, RF811RK, RF810RK Headphones
Note! Choose correct battery. The Headphone model is printed under charging tower. The BP-HP550-11 battery can NOT fit Sony RF995R (RF995R uses the HP800 battery, see ASIN B07J1VWBPS)
New Genuine original SONY rechargeable battery BP-HP550-11 in manufactures original sealed packaging
The battery will fit SONY MDR-RF912RK, RF925R/RK, RF970R/RK, RF810R/RK, RF811RK, RF840RK, RF850RK, RF855RK, RF860RK, RF4000/K, IF245RK wireless Headphones
Type: Rechargeable Nickel-Metal Hydride (NiMH) 2X AAA batteries. Capacity; Voltage: 2.4 V, Amp Hours: 550 mAh
Dimensions: 1.1″ x 0.9″ x 0.5″ (L x W x H)