Retekess T128 Watch Receiver with 20 Call Buttons & USB Cable – Reliable Communication Color:White and you can do anything

and you can do anything else while listening to music or radio

Observation of Jupiter’s clouds

So it can be convenient to replace earphones

94% transmission at 486nm (H-beta)

Retekess T114 Wireless Paging System with one display and 10 call buttons

Retekess T128 Watch Receiver with 20 Call Buttons & USB Cable – Reliable Communication Color:White and you can do anythingProduct description T128 watch receiver Working frequency: 433 MHz Decoding: learn the code Working voltage: DC 3. 7V Battery capacity 400mAh Size: 252 x 46 x 18 mm Weight 43. 8 g Model: TD017 Modulation: AM Coding method: 1527 Voltage: 3 V Standby power consumption: <0. 2 uA Battery: CR2032 * 2 Battery: 210mAh Package 1 * T128 watch 1 * USB cable 20 * TD017 call button 20 * Stickers Safety Warning Before using this calling system, read this guide