Feature:_x005F_x000D_1. Ultra-Portable Audio Streaming Power Supply: Just put this extremely portable and lightweight audio transmitter and receiver in your backpack and take it anywhere._x005F_x000D_2. Transmitter Mode: Wirelessly stream audio from a non-Bluetooth TV, home stereo or CD player to Bluetooth headphones or speakers._x005F_x000D_3. Receiver Mode: Wirelessly stream audio from a Bluetooth-enabled phone, tablet, or computer to a wired stereo, speakers, or headphones._x005F_x000D_4. Switch between RXTX modes: Easily switch between transmitter and receiver modes with a flick of a switch._x005F_x000D_5.Wide Compatibility: This receiver transmitter adapter can be widely used in your computer, laptop, home stereo system, earphone, smartphone, Mp3 player, CD player, etc._x005F_x000D_Specification:_x005F_x000D_Product name: car bluetooth adapter_x005F_x000D_Product material: ABS_x005F_x000D_Product color: black_x005F_x000D_Product size: 3.8*3.8*0.6CM_x005F_x000D_Product Type: Bluetooth TransmitterReceiver_x005F_x000D_Technology: BT5.0, A2DP, AVRCP receive mode only_x005F_x000D_Operating Range: Up to 10m 33ft without any obstructions_x005F_x000D_Charging time: 2 hours_x005F_x000D_Continuous use time: 6 hours receiver mode 5 hours transmitter mode_x005F_x000D_Product battery: 300mAh polymer lithium battery_x005F_x000D_ Package Included:_x005F_x000D_1 * Bluetooth receiver_x005F_x000D_1 * charging cable_x005F_x000D_1 * User Manual_x005F_x000D_1 * 3.5mm audio cable_x005F_x000D_ Notice:_x005F_x000D_ Manual measurement please allow 1-2cm size error_x005F_x000D_