X9 wireless Bluetooth 5.0 headphones with one microphone inside ear sports waterproof earphones TWS headset with Bluetooth feature manual

Product details: specifications: type of headphones: can be used for both left and right ears wireless version: V5.0 + EDR wireless profiles: hands-free/headset support protocol: HEP/HSP/A2D/AVRCP transmission range: more than 10 meters battery type: rechargeable lithium battery with a capacity of 55 mAh charging time: about 1-2 hours working time: music 4-6 hours (volume level will affect the time) standby time: about 100-150 hours frequency range: 2.40-2.48 GHz distortion factor: ≥1% frequency response: 20 Hz-20 kHz wearing modes: in-ear/hidden headset color: black, white (optional) package includes: 1 * small wireless earphone (one earphone) 1 * USB charging cable 1 * user manual notes: 1. Due to differences between screens, the actual color of the item may not reflect the image. We guarantee that the style is the same as shown in the pictures. 2. Please allow slight differences in size due to manual measurement. If you have any questions about the products and orders, please contact us in a timely manner, and we will respond and assist you as soon as possible.