Home KOLUMAN K8 Headset$94.00PriceColorQuantityAdd to CartProduct InfoBluetooth/TF Card/FM Redio 1,Material: ABS +metal 2,Speaker unit: 40mm diameter, speaker power: 32Ω 10mW * 2 3, Bluetooth Specifications : Bluetooth V5.0 JIELI 4,300mAh A grade polymer battery