Hamilton Buhl pat bell is a super affordable personal educational headphone with leatherette ear cushionsHamilton Buhl pat bell is ideal for kids in the age group of 3 to 7. These personal educational headphones include Hamilton's exclusive patented ASM automatic stereo and mono technology. Available at an affordable price, the Hamilton Pat Bell features great sound quality. These headphones have been designed to fit over the ear and come in a heavy-duty, write-on, re-closable bag. The Vcom Pat Bell is easy to use and maintain, so you do not have to face the hassle of controls or switches while using the headphone. Thus, they can be easily used by children and are ideal for formal teaching.- Design: Personal.- Ear Cushions Type: Replaceable leatherette.- Plug: 3.5 mm stereo.- Cord Length: 6'.- Cord Type: Chew-resistant, braided nylon.- Speaker Drivers: 40 mm.- Impedance: 32 Ohms.- Sensitivity: 100 dB.- Compatible with: MP3 players, cell phones, tablets, E-readers, chrome books, computers, CD players/stereos, TV sets, and gaming systems.- Dimensions: 6"" x 3"" x 6"".- Weight: 0.15 lbs.- Operates in: 0.12"" stereo, 0.12"" mono, 0.25"" stereo and 0.25"" mono modes.- Age group and grade: Ages 3- 7.- Super affordable personal educational headphone with leatherette ear cushions.- Never longer worry about mismatching headphones between different sources and damaging ears or equipment.- No switches to set or special plug adapters to change- the headphone knows if it is plugged into a stereo or mono....