Description:With the adoption of Bluetooth-compatible5.0 technology, the wireless transmitter has fast, stable and non-delayed signal transmission.The wireless transmitter is multifunctional and practical because it supports Bluetooth-compatible transmission and reception.Made of ABS material, the wireless transmitter is eco-friendly and durable to use. It is plug and play, which is convenient to use.The length of the wireless transmitter is 8cm, width is 2.5cm and thickness is 1.5cm. The knob switch brings you convenience when you use it.The wireless transmitter supports the connection between your devices without Bluetooth-compatible function and your smart phone, speaker, headset, mouse, keyboard and so on.Item Name: Bluetooth-compatible TransmitterMaterial: ABSModel: B15Bluetooth-compatible Version: 5.0Transmission Distance: 10mInput Interface: 3.5mmInput Voltage: DC/5VFeatures: Driver-free, Quick Transmission, LCD Digital DisplaySize Details: 8cm x 2.5cm x 1.5cm/3.15" x 0.98" x 0.59" (Approx.)Notes:Due to the light and the screen setting difference, the item's color may slightly differs from the pictures.Please allow slight dimension difference due to the manual measurement.Built-in battery is not included, and external power supply is required.Package Includes:1 x Bluetooth-compatible Transmitter1 x Audio Cable(45cm)1 x User Manual