1. Multiple Playing Model: Support to from TF card (can be used as MP3), music time can be for 14 hours continuously. On the model of listening music from phone phone's Bluetooth-compatible, the music time can be for about 20 hours, long Endurance. 2. Newest V5.0 chip, transmit stably, bigger coverage area, low-power consumption. 3. Universal Compatibility: This Bluetooth-compatible 5.0 Receiver can be connected to any A/V receivers and any powered speakers with standard 3.5mm jack , ideal compatible for home theaters, stereo systems, and car stereos, also suitable for ALL mobile phones with Bluetooth-compatible function. 4. Dual Connection: can connect to 2 Bluetooth-compatible devices at the same time. 5. Long-Range Wireless Connection: The wireless Bluetooth-compatible adapter supports the connection up to 10 meters/33 feet, controlling the music playing in a long distance. Multiple compatible: It can work with wired earphone & headphone to achieve the handsfree perfectly. Or, when use it in car, it can work through car aux and transmit the phone music to car stereo. Of course, you can work to old speaker, tablet, laptop and the other devices as well. Size: 55x 25 x 11mm Product Name: Bluet ooth-compatible5.0 Audio Receiver Bluetooth-compatible version: BT5.0+ Battery capacity: built-in 200mAh rechargeable Charging time: 2 hours Play time: 20 hours Standby time: 100 days Battery type: Build-in rechargeable lithium-ion battery Color: Black Material: plastic Package Contents: 1 * Bluetooth-compatible Adapter 1 * cable Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.