Wireless Bluetooth Handsfree Multipoint Speakerphone Speaker Car Kit Visor MP3 Music Player black.Note: Due to the problem of logistics time, please charge the product first Long press +: you can adjust the volume Features: Brand new and high-quality; Simple setup and installation; Pair two devices and take a call from either; Advanced noise suppression and echo cancellation; Low power consumption high performance; Built-in speaker and microphone; To answer/end/rejec