Best Radio Frequency Wireless Home

Lenovo ThinkPad X1 Presenter MouseNew Retail, 4Y50U45359New Retail

Closed back, circumaural headphone system. Connectivity Technology: Wireless.
High-quality Sennheiser transducers for exceptional sound.
Designed exclusively for use with the RS 175 RF Wireless Headphone system (sold separately). Frequency response : 17 - 22000 Hz. Maximum sound....
Connectivity technology: Radio Frequency wireless.

... charging feature. To use wireless charging, the speaker must be plugged into the included USB cable,.
Bluetooth connection: Bluetooth 5.0 supports stable wireless connection up to 32 feet / 10m. In Bluetooth speaker mode, the word “BLUE” is always shown on the display..
FM Radio: Supports automatic scan of radio frequency and station saving function. To improve radio signal, connect the AUX cable to the AUX port on the back..
Portable and rechargeable: Can be used 5 hours on a single charge with built-in 1,200 mAh rechargeable battery, with no need to replace the battery. The wireless charging function can only be used while the speaker is plugged in to the included USB cable..
Clock mode: Supports time display in 24H only. To set the time, press the clock button and turn the volume knob to increase or decrease numbers..
Alarm and snooze: Supports alarm and snooze. The alarm sound can be chosen from the default alarm in the speaker, last song played on the TF card or FM radio. The snooze can be set in 9-minute intervals and there are no limits to number of snoozes..
6 speaker modes: Speaker can be used in 6 different ways in speaker, speaker timer up to 90 minutes, FM radio, TF / micro SD card, AUX and hands free mode..

2.4 GHz radio frequency wireless technology.
2.4 GHz radio frequency wireless technology and tracking method is Optical sensor.
Ergonomic vertical design. The vertical design provides better support for your forearm minimizing wrist pain that can come from twisting..
Back & forward button for convenience. Two internet navigational buttons, back and forward, are conveniently located on the left side of mouse to provide you with internet browser control with minimal hand movement..
Dpi switch button. Quickly and easily adjust DPI resolution (1000/1500/2000 DPI) for a faster response with the convenient DPI switch located right beside your thumb..
Battery-saving. Use the battery-saving on/off power switch on mouse base to extend battery life and reduce the need to change batteries..
2.4 GHz Radio Frequency Wireless Technology and tracking method is optical sensor.
Ergonomic Vertical Design. The vertical design provides better support for your forearm minimizing wrist pain that can come from twisting..
Back & Forward Button for Convenience. Two Internet navigational buttons, back and forward, are conveniently located on the left side of mouse to provide you with In....