Securely locking chassis 1/4" phone jack that mates with all mono and stereo plugs specified acc. EIA RS-453 (A-gauge) and provides stable and secure connections where accidental disconnect or shock and vibration may occur. Plug locks-in automatically when mating and unlocks only by pressing red release tab. It offers selectable grounding options and standard D size front panel appearance (dimensions: 31 x 26 mm). Jack also features a black metal housing and gold contacts with solder terminals.