Bluetooth Headphones, LED Digital Display, Intelligent Noise Reduction, HIFI Surround Sound Effect, Large Capacity Battery, No Sense Delay, Stable Transmission Product parameters： Product Name:Bluetooth earphone Product color: Black Material:ABS Package size:21.5x14x3cm/8.4x5.5x1.2in Gross weight:98g/0.21lbs Frequency range: 20Hz-20KHz Working range: 15M Mode of action:Neck hanging Headset talk time: about 50 hours Earphone listening time: about 50 hours Standby time: about 500hours level:IPX3 Bluetooth protocol：5.2 Product description: The new Bluetooth 5.2 is continuously stuck, the transmission signal penetration is strong, the transmission is faster and more stable, and thehigh-quality and treble sound source signal is guaranteed. High-energy and large-capacity battery, listening to music for more than a day for a long time, supporting continuous music playback for about 50 hours, and enjoying life in standby for 500 hours. The fine structure makes the sound accelerated the heartbeat, the HIFI level configuration, the vocational stage sound tuner tunes, and the test achieves a more shocking audio-visual level stereo surround sound effect. Delay-free, exclusive game mode, the game has almost no delay, the control and the sound are precisely matched, the audio and video are synchronized, and you can seize the game opportunity and Pre-empt. Comfortable to wear, can not be thrown off when you are exercising, in-ear design, fits different ear shapes and does not fall off during strenuous exercise. Bluetooth / memory card dual mode playback,Bluetooth headphones can be inserted into the card to play, and your favorite music can be stored in the card when you go out for sports without a mobile phone, which is not limited by the connection distance. Package Included: 1xWireless Earbuds 1xUSB Charging Line 1xSpecification Bluetooth earbuds; wireless earbuds; earbuds wireless bluetooth earbud & in-ear headphones; wireless bluetooth earbuds bluetooth wireless earbuds; wireless ear buds; wireless bluetooth earphones sports headphones; waterproof headphones headphones wireless bluetooth; bluetooth headphones