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The MDR-AS20J active-style headphones from Sony are a terrific option for workouts, bike rides, and active games. These earbud-style stereo headphones use soft around-ear loops to provide a secure and comfortable fit while maintaining a lightweight frame.
The headphones use neodymium magnet drivers to provide clear, natural audio with a wide frequency response. The open-air design allows you to hear the environment around you, perfect for outdoor jogging or basketball games. The cord has a gold-plated stereo mini plug for wide compatibility, and a detachable extension cord is provided for extra slack. A clothing clip is also included for securing the cable.
| Type | Open-Air, Dynamic, Active-Style |
| Frequency Range | 18Hz - 22kHZ |
| Impedance | 16 Ohms |
| Sensitivity | 104dB |
| Maximum Input Power | 50mW |
| Connectors | Gold-Plated 3.5mm Stereo Plug |
| Cable Length | 2' (0.6m) with 2' (0.6m) Extension |
| Weight | 0.46 oz (13g) (Without Cable) |