Product details of Bluedio Bluetooth Headset Tmonitor Over The Ear Bluetooth Version: 5.0 Transmission Frequency Bluetooth Range: Up To 10 M (Free Space) Bluetooth Profiles: A2DP, AVRCP, HSP, And HFP Frequency Response: 20Hz-20K Hz Audio Resolution: Up To 24bit@48KHz Driver Units: 57mm X 2 Impedance: 160 Total Harmonic Distortion (THD):0.3%-3% (THD) Sound Pressure Level (SPL):118dB Bluetooth Music/Talk Time Charging Time: About 1000hoursv 【 BLUETOOTH HEADPHONES WITH EXQUISITE WORKMANSHIP】Bluedio TM Over-Ear Wireless Headsets with a Day-and-night test for 365 days, and repeated voice tuning for 1569 times bring you a new music experience. The world first-level voice tuning equipment from Denmark has been purchased to create the professional mute room for the ears, with the only aim to create the truest voice. 【INDEPENDENT DESIGNED AND R&D HIGH-QUALITY SPEAKERS】Bluedio TM intelligent headset is developed by Bluedio working team to achieve high realization of three-frequency balance, bringing full-sided music experience. The broadcast voice is delicate and has the sense of quality, enabling you to enjoy the quiet time in noisiness. 【BLUETOOTH 5.0 & 30 HOURS MUSIC TIME】High-Definition Monitoring Earphone has reduced the power consumption in combination with circuit optimization of Bluetooth 5.0 chip, and achieved clearer data transmission. After 2 hours of full charge, you can play music for 30 hours, eliminating the trouble that headphones with no power during a short trip, keep the music go all the way! Specifications of Bluedio Bluetooth Headset Tmonitor Over The Ear SKU 222178882_PK-1437673966 Cable Length Not Specified What’s in the box 1 x Bluedio Bluetooth Headset Tmonitor VIEW MORE