BA300 Battery for Sennheiser Headphone IS 410, RS 4200 and Set 900
Specification:
Type: Li-po
Voltage: 3.7V
Capacity: 150mAh
Weight 6g
Dimensions: 31.9x24.7x6.4 mm.
Color: Black
This Headphone Battery can replace the following part numbers:
Sennheiser
BA300,
This Headphone Battery is also compatible with the following models
IS 410, RS 4200 and Set 900
And more models.