Item Type: Bluetooth Adapter Material: Plastic Operating Range: Approx. 15m / 49.2ft (without obstacles) Bluetooth Version: 5.0 Input Voltage: DC / 5V Input Interface: 3.5mm audio Package List 1 x Bluetooth 5.0 Audio Transmitter/Receiver Adapter 1 x Manual 1 x 3.5mm Interface Cable 1It is a light and ideal wireless audio adapter suitable for various situations and uses. 2The transmitter mode is to wirelessly transmit audio from a nonbluetooth TV, home stereo or CD player to a bluetooth headset or speaker. 3The receiver mode is to wirelessly transmit audio from a bluetoothenabled mobile phone, tablet or computer to a wired stereo, speaker or headset. 4Easy to use, just tap the switch to switch between transmitter and receiver modes. Using advanced bluetooth technology and 3.5 mm audio cable (included) to easily connect. 5With the included 3.5mm cable, this adapter can be widely used in cars, computers, laptops, stereos, earphones, smart phones, MP3 players, CD players, etc.