Bluetooth earphones for headphones, dual earpiece magnetic attachment

Welcome to our store! 1. Bluetooth Version: 5.3+ 2. Frequency Range: 2.402 GHz - 2.480 GHz 3. Range: 10 to 15 meters (varies depending on the device) 4. Microphone Range: ≤ 1 meter 5. Lithium Battery: 3.7V/900mA, Battery Life: ≤ 20 hours, Charging Voltage: 5V, Charging Time: 5 hours, Standby Time: ≤ 80 hours, Bluetooth Model: BT9, Color: Black, Material: ABS, Package Contents: 1 pair of Bluetooth headphones, 1 charging cable. Only the above-mentioned contents are included. Note: The color of the item in the photo may slightly differ from the real thing due to light reflection and your monitor settings. A margin of error of +/- 1 to 3 cm is possible. Customer satisfaction is our top priority. If you notice any problems with the product after receiving it, such as damage or an incorrect quantity, please contact the seller immediately. We are committed to providing you with excellent after-sales service.