Bluetooth Receiver, VicTsing Portable Mini Bluetooth CSR 4.0 Receiver A2DP Wireless Adapter for Home Audio Music Streaming Sound System/Bluetooth Car Kits with 3.5 mm Stereo Output Advance Bluetooth technology: with highly performance CSR 4.0 bluetooth chip, this low consumption receiver can receive the signal at the distance of 10 meters. With strong anti-interference and stable transmission, you can enjoy the perfect sound. Unique design: the unique design of water drops shape and gold-plated 3.5mm audio head. Fashion, high class, small, and portable. Built-in microphone: Build-in noise cancellation digital microphone can ensure clear phone call and no call miss. Super battery life: With lithium ion rechargeable battery, you can enjoy up to 6 hours uninterrupted playtime. Easy to operation: Very easy to understand how to use the product. Special way to switch previous or next track, and control volume. Provide optimal performance to you. Intelligent energy-saving sleeping mode and one for two devices: when the receiver disconnected or have not connected to the devices, it will enter energy-saving sleeping mode after 3 minutes, and turn off after 15 minutes. Can connect to two devices at the same time and provide more options for you.