3.5mm to 1/4 inch Cable Stereo Audio Cable Jack Headphone Adapter 1/8 Male to 1/4 Male for Cellphone Home Theater Device Guitar Laptop 1.5m

Description:, Application: 3.5mm 1/8inch male to 6.35cm 1/4 inch male cable , or heads with 3.5mm ports to audio devices with 6. suitable between

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J&D 6.35mm (1/4 inch) to 3.5mm (1/8 inch) Headphone Jack Adapter 9 Feet, Gold Plated 3.5mm Female TRS to 6.35mm Male TRS Stereo Audio Cable for Guitar Amp, Amplifiers, Headphones Extension Cable - Yahoo Shopping

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3.5mm to 1/4 inch Cable Stereo Audio Cable Jack Headphone Adapter 1/8 inch Male to 1/4 inch Male for Cellphone Home Theater Device Guitar Laptop 1.5m

What is the maximum length for a 3.5 mm audio cable? I want to connect the audio output of my projector to the audio input in my amplifier and they are 50