6pcs Original XIAOMI Bluetooth Audio Receiver Plug Play HiFi Audio for Universal 3.5mm Earphone Speaker 3-Way swivel fluid head with

3-Way swivel fluid head with a arca swiss compatible clamp easily to put on and off

Pulse Rate Accuracy: Accuracy: ±2bpm or ±2% (select larger)

3 Random Function Timer durong 1~2 hours

The material is aluminum tube

bacteria and other viruses

6pcs Original XIAOMI Bluetooth Audio Receiver Plug Play HiFi Audio for Universal 3.5mm Earphone Speaker 3-Way swivel fluid head withProduct Features: Utility and lightweight Creatively designed Bluetooth Audio Receiver, make your normal wired devices into a wireless devices, which enable you to appreciate music without any barrier. Lightweight and portable, only weight for 10g (0. 35 oz), NO extra burden on you. Clear sound Built in professional audio chip, with high signal to noise ratio and low distortion signal, which could radically ensure a high quality music. It would be a