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Bluetooth version: V5.3 Bluetooth chip and model: Jerry 6983D4 Ear plug battery capacity: 50mAh Charging compartment battery capacity: 1200mAh Charging interface: Type-C Color box bag Note: 1. There may be slight size deviations due to manual measurement, different measurement methods and tools. 2. The image may not reflect the actual color of the item because of different shooting light, angle and monitor display. Note: 1. There may be slight size deviations due to manual measurement, different measurement methods and tools. 2. The image may not reflect the actual color of the item because of different shooting light, angle and monitor display.