Dual Link Bluetooth Transceiver, TX/RX, TF - BT310D

One Device, Two Ways to Go Wireless - and Now for Two People at Once The Astrum BT310D is a Bluetooth 6.0 audio transceiver with Dual Link support, an LED display and TF card MP3 playback. Use it in TX mode to send audio from a TV, PC or compatible 3.5mm source to Bluetooth headphones, or switch to RX mode to receive music and calls from your phone through wired speakers or headphones. Dual Link - Connect 2 Devices at Once Pair two Bluetooth headphones or speakers in TX mode, or two phones in RX mode, allowing two devices to connect at the same time. LED Display The LED display shows the current mode (TX or RX), connected device names and connection status, so you can easily see what's paired. TF Card MP3 Playback Insert a microSD/TF card up to 32GB, sold separately, to play MP3 files directly through connected headphones or speakers - no phone or Bluetooth source required. Built-In Mic for Hands-Free Calls In RX mode, pair the BT310D with your phone to answer, reject and take calls hands-free through your connected speakers or headphones using the built-in microphone. Calling is supported in RX mode only. Technical Specifications Model: BT310D Bluetooth Version: 6.0 Modes: TX (Transmit) / RX (Receive) / Dual Link Supported Protocols: HSP / HFP / A2DP / AVRCP Audio Decoding: SBC Display: LED TF Card: microSD, up to 32GB Audio Connector: Fixed 3.5mm AUX Charging: USB-C, 5V 1A Battery: 300mAh Charging Time: Approx. 2 hours Wireless Range: Up to 10m Weight: 28g Dimensions: 46× 48 × 14mm What's in the box 1 x Astrum BT310D Transceiver 1 x USB-C Charging Cable 1 x User Guide