not a Bluetooth transmission
(Note: Universal mode does not support palm rejection and without wireless charging function
tough and reliable enough for outdoor and marine use
and dust getting into the buttons
SKF 5808 LDS & Small Bore Seal, R Lip Code, HMS4 Style, Metric, 15mm Shaft Diameter, 25mm Bore Diameter, 5mm Width industrial not a Bluetooth transmissionSKF 5808 LDS & Small Bore Seal, R Lip Code, HMS4 Style, Metric, 15mm Shaft Diameter, 25mm Bore Diameter, 5mm Width Radial shaft seals help retain lubricants and other fluids in hydraulic and pneumatic systems by sealing a rotating, oscillating, or reciprocating shaft or rod against its housing. They have a flexible lip (made of an elastomer such as nitrile or polyurethane) that comes into contact with the surface of the shaft to form a dynamic seal.