Business Bluetooth Earphones Wireless Ear Hanging Non In Ear Noise Reduction Digital Display Long Microphone High Battery Long Battery Life Product parameters： Product Name:Bluetooth earphone Material:ABS Package size:11.3x9.2x4.5 cm/8.7x6.2x1.0 in Gross weight:90g/0.25 lb Frequency range: 20Hz-20 KHz Product size: 6.5x5.3x2cm/2.6x2.1x0.78in Headset talk time: about 58 hours Earphone listening time: about 48 hours Battery capacity: 400mAh Product colors: Bluetooth protocol：5.4 Product description: The new Bluetooth 5.4 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, supporting continuous music playback for about 48 hours, and enjoying life in standby for long. The fine structure makes the sound accelerated the heartbeat, the HIFI configuration, the vocational stage sound tuner tunes, and the test achieves a more shocking audio-visual stereo surround sound effect. Delay- , 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 . Comfortable to wear, can not be thrown off when you are exercising, in-ear, fits different ear shapes and does not fall off during strenuous exercise. Large moving ring speaker, with the international tuner to redesign the high, middle and low three frequencies, balanced restoration of sound layer. LED power digital display power at a glance,Real- power display, let you weet more intuitive electricity go out without worrying about electricity. Package Included: 1xWireless Earbuds 1xUSB Charging Line 1xSpecification