•WiredtoWireless Reuse Idle Devices: Through the 3.5mm interface, wired devices add Bluetooth-compatible functionality. No longer bound by cables, Enjoy wireless freedom •Voice Navigation Focus On Driving: Connect to car audio equipment with AUX interface and increase the volume, Navigation voice guidance will not let you miss every intersection •Take Selfies Without Restraint: Via Bluetooth, Just one click, Get rid of distance restrictions and multiple angles at your fingertips. Make photography flexible and diversified •Built-in Microphone 3D Stereo Surround: Bluetooth-compatible 5.3 audio decoding + HD noise reduction microphone + 3D surround sound, the vocal details during calls are richer •Far & Near, All Stable: Supports 10-20 meters transmission, Stable signal, Let you easily get rid of the headphone length limitation •Features: Bluetooth/TF dual mode, lavalier design, Bluetooth-compatible photo, Bluetooth-compatible 5.3, built-in microphone, built-in 110mAh polymer battery, suitable for multiple devices Specifications: •Material: ABS •Output Connector: 3.5mm •Bluetooth-compatible version: 5.3 •Bluetooth-compatible protocol: A2DP/AVDTP/AVRCP/RFCOMM/HFP/HSP/SPP/HID •Signal-to-noise ratio: >90dB •MIC sensitivity: ±42dB •Frequency Response: 20Hz-20kHz •Transmission distance: 20m •Output power: 11mW RL=16Ω •Battery Capacity: 110mAh •Charging time: 2 hours •Using time: 4-5 hours •Product size: 56.5 23 x 7mm •Weight: 30g Package included: •1 x Bluetooth-compatible Adapter •1 x Charging Cable •1 x 3.5mm Audio Adaptor •Other items not included