Specifications: Color: Black, White; Bluetooth version: BT 5.0 + EDR; Input voltage: DC 5V; Earphone frequency: 2.4GHZ; Charging time: About 2 hours; Playtime: About 2-3 hours; Standby time: Up to 120 hours; Earphone capacity: About 60mAh; Impedance: 16 Ohm; Compatible protocol: HFP, HSP, A2DP, AVRCP, APYX; Charging box size: Approx. 8.5x4x3cm/ 3.35x1.57x1.18''; Earphone size: Approx. 2.5x1.5x2.5cm/ 0.98x0.59x0.98''; Features: -Bluetooth 5.0 technology, faster transmission speed, lossless level transmission. -Built-in chip supports Hifi sound quality, perfect interpretation of music. -Strong battery, charging box display shows the percentage of remaining charge. -Cochlea fitting design, no extrusion, no pain, comfortable wearing. -Metal composite diaphragm, bass, mid - treble not a problem. -Noise reduction technology, restore clear voice. -Just take the headset out of the box and turn it on and start Bluetooth automatically. -Wireless stereo, left and right channel separation, both ear can be used separately. -Intelligent touch sensing, gently touching the earphone can switch or pause to start the song. -Intelligent compatibility, support all with Bluetooth-enabled mobile phones, tablet, notebook. Package Included: 1 Pair Wireless Earphone; 1 x Charging Box; 1 x Charging Cable; 1 x Manual