Specifications:Built-in 200mAh battery, headset provides 3.5mm AUX audio cable, supports wired connection, safe and durable.With side button design, bluetooth headset is skin-friendly and fit the ears, comfortable and convenient to use.High-sensitivity FM radio reception, support automatic station search, you can listen to your favorite programs anytime, anywhere.40mm large-size dynamic drive unit provides strong power, with a fully enclosed sound cavity to show the bass surging of the large unit.Bluetooth 5.0 supports stereo music playback with 10m barrier-free transmission, clear phone calls, allowing you to have a good experience.Built-in decoding chip, earphone supports TF memory card playback, compatible with 32GB, can be turned into MP3 without external equipment.Item Name: bluetooth-compatible HeadsetBluetooth Version: 5.0Battery Capacity: 200mAh(Included)Frequency Response: 20 Hz-20 KHzOperating Distance: 10mDistortion: Speaker Size: 40mmSignal to Noise Ratio: 80dBImpedance: 32Material: Faux Leather, PlasticFeatures: Adjustable, Skin-friendly, Noise ReductionSize: 17.5cm x 15cm x 6cm/6.89" x 5.91" x 2.36" (Approx.)Notes:Due to the light and screen setting difference, the item& 39;s color may be slightly different from the pictures.Please allow slight dimension difference due to different manual measurement.Package Includes:1 xBluetooth Headset1 x Charging Cable1 x Audio Cable