Bluetooth 5.2 Transmitter And Receiver  Long Battery Life, Dual Pairing, Universal Compatibility for Wireless Audio Versatile transmitter in TX mode for airplane, TV, and non-Bluetooth devices, with up to 10m range Long-lasting 28-hour battery life (TX: 28H, RX: 20H); USB-C quick charging for convenience Dual device pairing allows simultaneous connection of two Bluetooth headsets for shared listening RX mode easily integrates with car, boat, or gym sound systems for wireless audio streaming from mobile devices Note: Only RX mode supports microphone calls; device range varies based on antenna quality -