?The Bluetooth Stereo Audio Transmitter is Specially designed for the Audio Devices (Such as Mp3£¬ Mp4£¬ TV and PC£¬ etc) without Bluetooth function. You can connect the Bluetooth Stereo Audio Transmitter to the audio devices with Bluetooth function via the included 3.5mm Audio Plug£¬ changing these audio devices into Bluetooth-enabled audio devices£¬ and making it work with Bluetooth-enabled Headset and Speaker. With the Bluetooth Stereo Audio Transmitter£¬ you can greatly enjoy the music of the Audio Devices (Such as Mp3£¬ Mp4£¬ TV and PC£¬ etc) without Bluetooth function by the Bluetooth-enabled Speaker and Headset. <br><br><strong>Features:?</strong> <br>Connect the Bluetooth Stereo Audio Transmitter to the Audio Devices (Such as Mp3£¬ Mp4£¬ TV and PC£¬ etc) without Bluetooth function via 3.5mm the included audio plug£¬ changing these audio devices into Bluetooth-enabled audio devices£¬ and making it is able to work with Bluetooth-enabled Headset and Speaker.? <br>With 3.5mm audio plug£¬ fit for most kinds of audio devices£¬ such as CD Player£¬ TV£¬ MP3£¬ MP4£¬ PC£¬ etc.? <br>The Bluetooth Stereo Audio Transmitter changes the audio devices without Bluetooth function into Bluetooth-enabled audio devices£¬ and transmits the audio signal to Bluetooth-enabled device wirelessly. <br>Plug and play£¬ no need installation.? <br>Built-in high-performance rechargeable lithium battery£¬ can offer 5~7 hours of work time after fully charged (Charged via USB Cable).? <br>Compact size£¬ portable and lightweight.? <br><br><strong>Specifications:?</strong> <br>Color: Black? <br>Material: ABS? <br>Bluetooth version: Bluetooth 4.0 + EDR? <br>Bluetooth profiles: A2DP. <br>Bluetooth Frequency Range: 2.4GHz~2.4835GHz? <br>Effective Transmitter Range: up to 10m? <br>Receiving Sensitivity: -74 ¡À4dB <br>Input voltage: DC 5V? <br>Working Voltage: 3.3 ~ 4.2V <br>Maximum Working Current: 30mA <br>Charge time: Approx. 1 hour <br>Work time: Approx. 5~6 hours? <br>Standby Time: Approx. 720 hours <br>Item size: Approx. 5.5 * 2.5 * 1.0cm / 2.16 * 0.98 * 0.39in? <br>Item weight: Approx. 12g / 0.42oz? <br>Package size: 11 * 7.5 * 2cm / 4.3 * 3 * 0.8in? <br>Package weight: Approx. 40g / 1.4oz? <br>?? <br><strong>Package List:?</strong> <br>1 * Bluetooth Audio Transmitter? <br>1 * 3.5mm Audio Connector <br>1 * USB Charge Cable