Kidz Gear Volume Limit Splitter Cable Used to split one stereo 3.5mm audio jack into two stereo 3.5mm audio jacks Made for iPad, iPhone and iPad - Supports Track Up/Track Down Remote Control Limits Volume To 80% of maximum output using KidzControl Volume Limit Technology Works With Any Headphone (must have a 3.5mm audio plug) 100% Satisfaction Guaranteed - Lifetime Limited Warranty