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Sony WI-C400 BT 4.2 20hrs Red
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KitSound Race Wireless Sports Earphones 5hrs Blue
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Technical Specifications
| Acoustic System Name | Closed Back | Closed Back | |
| Battery Life (max) | 20 hours | 5 hours | |
| Battery Recharge Time | 4.5 hours | - | |
| Battery Technology | - | Lithium-Ion (Li-Ion) | |
| Bluetooth | Yes | Yes | |
| Bluetooth Version | 4.2 | - | |
| Cables Included | Micro-USB | - | |
| Charging Source | - | USB | |
| Colour of Product | Red | Black, Blue | |
| Connectivity Technology | Wireless | Wireless | |
| Continuous Audio Playback Time | 20 hours | - | |
| Depth | - | 60 mm | |
| Driver Unit Size | 9 cm | - | |
| Ear Coupling | In-ear | In-ear | |
| Ear Coupling - In-ear | Yes | Yes | |
| Ear Hook present | - | Yes | |
| Ear Hook Type - Over-ear | - | Yes | |
| Headphone Frequency | 8 - 22000 Hz | 20 - 20000 Hz | |
| Headphone or Headset | Mobile headset | Mobile headset | |
| Headset Type | Dual Ear | Dual Ear | |
| Height | - | 10 mm | |
| Magnet Type | Neodymium | - | |
| Microphone Number | 1 | 1 | |
| Multi-function Control - Position | On-cable | On cable | |
| Multi-function Control - Type | - | Digital | |
| Multi-function Control Present | Yes | Yes | |
| NFC / W1 | Yes | - | |
| Rechargeable | Yes | Yes | |
| Replaceable Ear Pads | - | Yes | |
| Smart Assistant Button (Siri, Google) | Yes | - | |
| USB Connectivity | Yes | Yes | |
| USB Port - Micro | Yes | - | |
| Volume Control Present | Yes | Yes | |
| Volume Control Type | Digital | Button | |
| Wearing Style | In-ear, Neck-band | Ear-hook, In-ear | |
| Weight | 35 g | 18 g | |
| Width | - | 600 mm | |
| Wireless Range | - | 10 m | |
| Wireless Type | Bluetooth | Bluetooth |
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