" Output interface 3. 5mm stereo connector, give 3. 5mm plug headset combined with Bluetooth function, barrier-free transmission, more convenient listening to songs, lossless decoding, binaural immersion Bluetooth version: Bluetooth 5. 0, equipped with Bluetooth 5. 0 chips, 10 meters long distance transmission, stable and fast connection Battery capacity 200 mAh, built-in 200 mAh rechargeable lithium battery Low power consumption 5.0 chip can last more than 10 hours Frequency response 50-200HZ, transmission distance 10-15m, PD Type-c charging port Product size: 4.3*4.3*1.3cmAdaptable products: fully compatible with Apple, Samsung, Xiaomi, Huawei, HTC, Nokia and other mobile phones and tablets, computers, headphones, audio, car audio and other equipment, etc. Note: The data is all measured manually, please allow 1-3cm error due to differences in light and display, there may be color differences, please refer to the actual item received. "