Listen to your tape recordings or use them when listening to telephone calls on Skype with these mono sound earset In-ear earphones for comfortable listening Get rid of the tangles and love your music with these wireless Bluetooth earset On-ear earpiece design offers comfortable listening for a longer duration Hear low subs and soaring vocals with a frequency range of sound from 100 Hz-20 kHz Stay connected smoothly with a wireless range of 98.4 ft Delivers exceptional sound quality with maximum efficiency and reliance MEMS Technology microphone technology ensures maximum dependability and optimal performance Call/Answer/End earpiece control for faster, dependable performance, better navigation, and maximum user-friendliness Your voice will be heard loud and clear with the boom microphone design to ensure maximum Earset usage efficiency