Manufacturer: SONY Model: MDR-Z700 Size: Approximately 29cm Resistance: None Plug: Tomoca L-shaped Cable: Sony-made curly cord Ear pads: New Left/Right: None Built-in LED flashlight. Turns on when rotated to the right. Battery can be replaced by turning it fully to the left. Uses one AAA battery. Single-ear headphones are often used by legendary overseas DJs such as Larry Levan, Frankie Knuckles, Timmy Regsford, Joe Claussel, Danny Krivit, David Morales, and Little Louie Vega… Recently, they are used by DJs of various genres, not just HOUSE. Noise may occur with Pioneer DJ/AlphaTheta mixers; use the mono split↔stereo switch on the stereo side and the cue↔master knob on the cue side. (See photo) This is for DJ mixers only. It is not intended for use with power amplifiers, mini-component systems, Apple products, Walkmans, guitar amplifiers, or microphone amplifier jacks. I intend to provide broad support for initial defects. I modify and sell headphones. All soldering is done with silver solder. Single ear headphones for DJs were often used by big name DJs like Larry Levan, Frankie knuckles, and Danny Krivit. Timmy Regsford, Joe Claussel, David Morales, Little Louie Vega… Modified: MDR-Z700 Please do not use it for a power amplifier, a guitar amplifier or a mic amplifier as it is for DJ mixer.