Sony XBA-1 Headphones
Cable (Corded), 3.94 ft. (1.2 m), Consumer, Stereo, 100 mW, Ear Buds, 5 Hz - 25 kHz, 24 ohm, 108 dB, Weight: 0.11 oz. (3.1 g)

Sony XBA-3 Headphones
Cable (Corded), 3.94 ft. (1.2 m), Consumer, Stereo, 100 mW, Ear Buds, 12 ohm, 108 dB, Weight: 0.25 oz. (7.1 g)

Sony XBA-4 Headphones
Cable (Corded), 3.94 ft. (1.2 m), Consumer, Stereo, Ear Buds, 3 Hz - 28 kHz, 8 ohm, 108 dB, Weight: 0.28 oz. (7.9 g)

Sony XBA-NC85D Headphones
Cable (Corded), 59.63 ft. (18.18 m), Consumer, Stereo, 50 mW, Ear Buds, 5 Hz - 20 kHz, 820 ohm, 106 dB, Battery Life: Up to 20 Hours, Weight: 0.22 oz. (6.2 g)

Sony XBA-2 Headphones
Cable (Corded), 3.94 ft. (1.2 m), Consumer, Stereo, Ear Buds, 4 Hz - 25 kHz, 12 ohm, Weight: 0.21 oz. (6 g)

Sony XBA-4iP Headphones
Cable (Corded), 3.94 ft. (1.2 m), Consumer, Stereo, Ear Buds, 3 Hz - 28 kHz, 8 ohm, 108 dB, Weight: 0.28 oz. (7.9 g)

Sony Balanced Armature Bluetooth Wireless Headphones, Noise Isolated Double-layered Housing, Inline Remote with Level Control, Rechargeable Lithium Ion Battery, Pairs with Most Phones & Bluetooth Players
The Sony Balanced Armature Bluetooth Wireless Headphones feature Sony's single Armature full range driver.The Sony Bluetooth Wirel...

Sony Balanced Armature Headphones
The Sony Balanced Armature Headphones feature Sony's single Armature full range driver. This Japanese manufactured driver technolo...