<p>• Model: Earbuds: M2540E1; Charging case: EC2501<br><br>• Frequency response range: 16Hz–40kHz<br><br>• Harman Golden Ear Team tuning and Hi-Res Audio<br><br>• Upgraded dual noise cancellation for calls and listening<br><br>• Type: Semi-in-ear true wireless Bluetooth earbuds<br><br>---<br><br>• Weight of a single earbud: 4.4g (±0.2g)<br><br>• Dimensions of a single earbud: 31.77 x 17.17 x 20.56mm<br><br>• Weight of charging case: 34.5g (±1g)<br><br>• Dimensions of charging case: 52.34 x 52.57 x 24mm<br><br>• Total weight: 43.4g (±1g)<br><br>---<br><br>• Battery capacity: Earbuds: 35mAh; Charging case: 475mAh<br><br>• Charging port: Type-C<br><br>• Earbud input parameters: 5V 100mA<br><br>• Charging case input parameters: 5V 700mA<br><br>• Charging case output parameters: 5V 200mA<br><br>---<br><br>• Wireless connection: Bluetooth<br><br>• Bluetooth protocols: Bluetooth Low Energy / HFP / A2DP / AVRCP<br><br>• Bluetooth version: BT5.4<br><br>• Bluetooth codec: AAC / SBC / aptX Lossless / aptX Adaptive / LC3 (only on selected models)<br><br>• Operating distance: 10m (open space free of obstacles)<br><br>---<br><br>• IP rating: IP54 (earbuds)<br><br> <br><br>---<br><br>Warranty Information<br><br>• Address: 229, Lavender Street, Singapore 338778<br><br>• Email: [email protected]<br><br>• Service Center Number: 85814530<br><br>• Call Center Number: 8008528474<br><br> <br><br>Working Hours:<br><br>• Tuesday – Saturday: 10am – 7pm<br><br>• (Sunday, Monday, Public Holiday – Closed)</p> <p>• 1 Year Official Warranty<br><br>• 11mm triple-magnet gold-plated driver<br><br>• Qualcomm aptX Lossless audio</p> <p>Store in cool and dry place</p> <p>Singapore</p>