Xiaomi OpenWear Stereo Pro

Technical Specifications

• Product Name: Xiaomi OpenWear Stereo Pro

• Brand: Xiaomi

• Model Number: M2503E1

• Form Factor: OpenWear Stereo (open-ear design)

• Available Colors: Graphite Black, Titan Gray, Sand Gold

• Frequency Response: 20Hz – 40kHz

• Earbud Dimensions: 50.8 × 34.9 × 16.7 mm

• Earbud Weight: 9.7g ± 0.2g per earbud

• Charging Case Dimensions: 68 × 68 × 26.3 mm

• Charging Case Weight: 52.5g ± 1g

• Total Weight: 72g ± 1g (with case)

• Battery Capacity:

  • Earbuds: 56mAh each

  • Charging Case: 700mAh

• Battery Life:

  • Single Charge: Up to 8.5 hours

  • With Charging Case: Up to 45 hours total

• Charging Port: USB Type-C

• Earbud Input: 5V ⎓ 130mA

• Charging Case Input: 5V ⎓ 1200mA

• Charging Case Output: 5V ⎓ 260mA

• Bluetooth Version: 5.4

• Bluetooth Protocols: BLE, HFP, A2DP, AVRCP

• Audio Codecs: AAC, SBC, LDAC (supported by certain models)

• Wireless Range: Up to 10 meters (open space, no obstacles)

• Water Resistance: IP54 (earbuds only – dust and splash resistant)

• Included in Box:

  • Xiaomi OpenWear Stereo Pro (1 pair)

  • Charging case ×1

  • Type-C Charging cable ×1

  • User manual ×1