¡Gracias por visitar nuestra tienda AC ! Estamos encantados de que hayas venido a ver nuestros productos, no olvides utilizar el área de preguntas si tienes dudas. HD Stereo Anti-Call Echo Design Wearable wireless bluetooth speaker has a dual speaker system which can provide clear treble and dynamic bass thereby producing a complete stereo. both sides equipped with echo cancellers to eliminate the echo during a call and improve the clarity. Package Included1 neckband speaker 1type-c charing cable 1user manual Bluetooth 5.0 Built-in Mic TF/SD card slotAdvanced Bluetooth 5.0 chip ensures stable transmission up to 33 ft 10m long range. Support SBC/AAC decoding support A2DP/HSP/HFP/AVRCP protocol. compatible with all Bluetooth-enabled devices such as smartphones tablets laptops TVs etc. give you stable connection you can also use theTF/SD cardmax 32g slot to enjoy good sound quality music everywhere. Long battery life and fast charging Built-in 600mAh battery standby time up to 48 h playtime 10h. With mainstream Type-C high-efficiency charging equipment 1.5-2h can be fully charged. Free up your hands and earsThis portable wearable speaker reduce the burden on ears leaves your hands free . Simply rest the speakers on your shoulders and immerse yourself in sound keeps you closer to your music and stay connected to the world around you. wireless Bluetooth speaker can be folded and fixed at will comfortable to wear convenient to carry. Best choice forOur worry-free 12-month warranty and friendly lifetime customer service.Whether it is after-sales or pre-sales no matter what questions you have you can contact us in time we will answer your questions and deal with all questions .