Features: - Features BT V5.0 for superior wireless performance(backwards compatible with for BT V3.0, and V2.1), - Have memory for the paired devices, - Maximum transmission distance more than 33 feet, and it can last 15 hours on full charge, which will take 2 hours with the USB charging cable, - All-in-one solution for BT receiving and transmitting, - RX mode: Easy pairing with BT enabled smartphones, tablets, desktops and laptops, - TX mode: Easy pairing with BT headphones, earbuds, speakers and other BT enabled audio systems, - Plug and Play, no driver or software needed, Specifications: Color: White/Black, Item Type: 2 In 1 Bluetooth Transmitter Receiver, Bluetooth Version: Bluetooth 5.0+EDR, Battery Capacity: 3.7V/300mAh, Working Hour: about 8-12h, Charging Current: 120mA, Charging Time: about 2h, Frequency Response: 20hz-20khz, Rated Input: DC 5V 500ma, Sensitivity: 97-103db, Material: ABS, Size: approx. 4.2x4.2x1.3cm/1.6x1.6x0.5in, What's included: 1 x 2 In 1 Bluetooth Transmitter Receiver, 1 x AUX Cable, 1 x RCA Cable, 1 x Charging Cablev,