True wireless bluetooth headset $ 446.35 Brand: Shengao Model: S200411G1 Function: battery display Headphone material: plastic Channel: 2 Bluetooth version: 5.0 Color classification: technology black, gradient purple, ruby red Package type: official standard Headphone category: true wireless headphones Waterproof performance: IPX7 How to use: earplug type Transmission radius: 10m Whether single or dual ear: bilateral stereo Smart type: other Intelligent transmission radius: 10m The connection between the left and right cavities of the earphone: wirelessly connect the earphone and the playback device Connection method: Bluetooth connection