Lossless Sound quality: Built-in high-performance decoding module, with BT5.0 lossless transmission, high-resolution stereo sound, the sound quality is more shocking. | Stable Connection: BT5.0 connection, MCU+DSP dual-core processor, CVC intelligent noise reduction, no noise, more stable and clearer. | Hands-free calling: Supports hands-free calling, built-in microphone, clear and smooth calls, one-key answer/reject/redial, safer driving. | Three-Port Charging: Dual USB and PD ports, quick charging output, can charge phones, tablets, driving recorders, navigation, etc. | Memory Function: Auto reconnect when power on, memorizes frequency and song, playing from the first sentence of the song that was disconnected.