Hoco UPA21 Cable audio adapter 3.5mm Male To 2*3.5mm Female

Length: 25 cm

Weight: 10 g

Material: Aluminum alloy casing with a high-strength nylon braided cable

Core Construction: Enameled copper ($4C \times 14 \times 0.06$, OD 3.7 mm)

Primary Function: Splits a single 3.5 mm male audio signal into two separate 3.5 mm female ports

Intended Usage: Features dedicated ports for microphone input and headphone output