KZ S1 true wireless bluetooth headset $ 28.35 Channel: 2 Bluetooth version: 5.0 Color classification: green, white, black, grey Headphone category: true wireless headphones How to use: in-ear Standby time: 5 days Transmission radius: 15m Connection between the left and right cavities of the earphone: wireless connection Headphone and playback device connection method: Bluetooth connection
