Technology: The DG09 earphones use advanced technology to deliver sound directly to your inner ear, bypassing the eardrum. This allows you to stay aware of your surroundings while enjoying your music or calls. Open-Call Noise Reduction: The open-call design and noise reduction technology clear, high-quality sound, even in noisy environments. 270° Rotatable Boom: The microphone boom can be rotated 270°, allowing you to adjust it to the most comfortable and effective position for calls. Long Battery Life: With a 150mAh battery, these earphones provide long-lasting performance on a single charge, ensuring you have reliable audio support throughout the day. Bluetooth Connectivity: The DG09 earphones feature Bluetooth technology for easy and stable connection with your devices, offering you the freedom to move around without being tied down by wires. Speaker type: 16.2mm large dynamic composite membrane speaker Battery: 150mAh polymer battery Microphone: One single-directional microphone, one omni-directional noise-canceling microphone Usage time: 10 hours (standard volume) Standby time: 200 hours Effective range: 10 meters or more Bluetooth version: 5.3 Colour:White Material:ABS Package Contents: 1 * wireless headset 1 * data cable Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.