Fangrui Product Details Features: 1. Connect 2 Speakers Simultaneously 3.5mm And Connection Options. Connect Your Nfc-enabled Device To Your Nfc-enabled Smartphone Or Tablet With A Single Touch. 2.wide Compatibility Stream Audio Wirelessly From Bluetooth-enabled Devices.hi-fi Music 5 Equalisation Modes, The Appropriate Button On The Receiver To Select Your Preferred Equaliser Mode 3. Bass-heavy 3d Surround Sound With 3d Button For One-touch Control.upgrade Your Old Wired Speakers, Low Signal Delay, Enjoy Pure Home Stereo Music 4.turn Your Old Speakers Into Bluetooth Speakers With Remote Control From Your Mobile Phone. 5.multi-function Jack For And Aux Connection, Type-c For Power Supply Specifications: Type: Standard Bluetooth Version: Bluetooth 5.2 Sound Quality: High Quality Audio Code: /aac /aac Bluetooth Protocol: Avrcp/a2dp Avrcp/a2dp Operating Range: . 10 Metres Ports: 3.5mm + Frequency Response: 20hz-22khz Material: Abs Colour: Black Package Contents: 1 X Bluetooth Receiver 1 X 3.5mm Audio Cable 1 X Audio Cable 1 C