Product model: F2 Bluetooth-compatible program:5.0 Product power consumption: 6mA (low power) Transmission distance:10M Battery capacity:40mAh*2 Standby time: 300h Music time: 3h Charging time: 1.5H Charging box capacity) 300mAh Product speaker:13MM dynamic ring unit Specifications: Single and ears, seamless switching Single headphones are placed in the charging bin, the other does not need to reappear 9D stereo surround sound double shocking sound Unique three-dimensional vocal system, enjoy bass Tao Yao bright auditory feast Light and small, comfortable Human engineering silicone ear hat design, comfortable wearing Wan if you don't worry, you can't get it. Low latency Precision listening definition The listener defense is a step, and it is easy to play. Package Included: 1 * headset, 1 * charging cable