feature: Imported 5.0 chip/smart touch/can be used as mobile phone stand; LED three-screen digital display/Siri voice assistant/HD noise reduction call; 9D stereo sound effect/automatic boot matching/IPX7 waterproof; Comfortable to wear/large-capacity charging compartment/can charge mobile phones. Product parameters: Model: AMOI F9 Fast charging time: about 40 minutes Bluetooth version: 5.0 Cumulative playing time: about 220 hours (used with charging compartment) Rechargeable headphones: about 40 times (Theoretical single charge of the charging cabin) Charging compartment capacity: 2000mAh Auto power on: support Headphone capacity: 50mAh Automatic pairing: support Power display: LED three-screen digital display Headphone material: PC Noise reduction version: CVC8.0 Magnetic switch: support Due to the light and screen setting difference, the item\'s color may be slightly different from the pictures. Package Including 1 * One pair of Bluetooth headsets 1 * Charging cable 1 * User Manual