Item Type: Audio ReceiverMaterial: ABSTechnology: BT5.0, A2DP, AVRCP (Receiver Mode Only)Operating Range: Up to Approx. 10m/32.8ft (Without Any Obstructions)Charging Time: 2 HoursBuilt in Polymer Lithium Battery: 200mAhFunction: Transmit and ReceivePackage List1 x Bluetooth 5.0 Audio Transmitter1 x Micro USB Power Cord1 x RCA Cable1 x 3.5mm Auxiliary Cable1 x Manual1TRANSMITTER MODE: Wirelessly transmit audio from a non bluetooth TV, home stereo system or CD player to a bluetooth headset or speaker. 2RECEIVER MODE: Wirelessly transmit audio from bluetooth enabled mobile phones, tablets or computers to wired stereo, speakers or headphones. 3EASY TO USE: Using advanced buetooth technology and 0.1in audio cable connection, you can switch between transmitter and receiver modes with just one tap of the switch. 4EASY TO CARRY: Put this transmitter and receiver in your backpack or laptop bag, and you can carry it with you without any effort. 5WIDE COMPATIBILITY: Equipped with 0.1in cable and RCA cable, powerful wireless audio streaming function, can be widely used in your smart phone, Mp3 player, etc.