Écouteurs Bluetooth F8 double oreille TWS avec compartiment de chargement, affichage numérique, sport, affaires, véritable son stéréo

F8TWS parameters: Bluetooth version: 5.0 version Bluetooth chip: Jerry chip Earphone battery: 70MAH Charging compartment battery: 400MAH Charging time: about one hour Playtime: Approximately 10 hours Weight of charging compartment and earphones: 62.3G Package weight: 102.4G Charging compartment size: 10 * 5.2 * 3CM Earphone size: 3.9 * 4.2 * 2.4CM Complete set size: 12 * 9.5 * 3.5CM Frequency: 20Hz-20KHz The impedance is 32 ohms Sensitivity 85dB/mW Waterproof grade: IPX 5 Purchase Notice: Our store is open to all professional consumers, and ordinary consumers are not eligible for returns or exchanges when placing a single order. Excluding tax transportation, customers can be contacted for invoicing.