Transmitter Bluetooth TV Transmitter & Receiver & Hands-free Calling One Device, Multiple Functions 3.5mm Earphone Jack Equipped Bluetooth Transmitter Bluetooth 5.1 Transmitter & Receiver 【Product Description】 Bluetooth 5.1 Transmitter Receiver One Device, Multiple Functions 【Transmit/Receive】 【Voice Assistant (Hands-free Calling)】 With this device, you can use non-Bluetooth devices wirelessly as if they were Bluetooth-enabled. Compatible devices: Cars, TVs, smartphones, iPhones, Android devices, tablets, Nintendo Switch, game consoles, audio adapters, PCs, laptops, earphones, headsets, speakers, CD players, MP3 players, car audio, etc. Long-lasting Playback Built-in Battery 4 hours of use in transmit mode, 6 hours in receive mode. Bluetooth 5.1 Version Equipped with Bluetooth 5.1 and CSR chip. Voice Assistant Since a microphone is built into the Bluetooth transmitter/receiver, you can change songs, make calls, and send messages just by speaking to this device. Rechargeable Built-in Battery DC mode: You can charge the device by connecting it to a USB power adapter/computer USB port/USB car charger, etc., with the included MicroUSB cable. This product can be used while charging. Built-in HD Microphone When you connect your mobile phone to your car stereo, you can experience the following: Music Playback In a Bluetooth connection state, play music from your mobile phone on a car stereo that does not support Bluetooth. Hands-free Calling When you receive a call while driving, press the phone/play button to answer the call, and press it again to hang up. Bluetooth Transmitter Receiver Transmitter One Device, Multiple Functions Ultra-compact TV Car Hands-free Calling Volume Adjustment Compatible Speaker TV Headphones Car Mount Applicable to Outdoor Use Can be used while charging Transmitter Receiver