Wireless Bluetooth Headset Sports in-ear wireless bluetooth earphones Working distance > 10m horn:

Working distance > 10m horn: real copper ring

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Battery capacity: 160mah

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Wireless Bluetooth Headset Sports in-ear wireless bluetooth earphones Working distance > 10m horn:Product information: Product Name: Bluedio Ei Blue string model: EI Function: call function Headphone material: plastic Channel: 2 Bluetooth version: 5. 0 Color Category: White Package type: official standard Headphone category: true wireless headphones Waterproof performance: IPX3 How to use: In ear Transmission radius: 10m Whether single or dual ear: bilateral stereo Smart type: other smart Transmission radius: 10m Connection between the left and