Sony Wf-C510 Truly Wireless Bluetooth Earbuds with Mic, TWS, Up to 22 Hours Battery, in Ear, Ambient Sound Mode, Small and Comfortable, Ipx4 REFURBISHED Body composition Analysis (BIA Measurement):

Body composition Analysis (BIA Measurement): Monitor everything from body fat percentage (BIA) to skeletal muscle weight

Rapid Eye Movement Etc

True Tone and ultra-low reflectivity

Wireless Communication Technology ‎Bluetooth Special Feature ‎Earbuds

Sony Wf-C510 Truly Wireless Bluetooth Earbuds with Mic, TWS, Up to 22 Hours Battery, in Ear, Ambient Sound Mode, Small and Comfortable, Ipx4 REFURBISHED Body composition Analysis (BIA Measurement):Features ALL DAY COMFORT: Light and compact to give you all day comfort and designed for the ideal fit, for an exceptional all round listening experience. LONG BATTERY LIFE & QUICK CHARGING: Up to 11 hours of battery life (up to 22hrs with case) with quick charging (5 min charge for up to 1 hour of playback). MULTIPOINT CONNECTION: Quickly switch between two devices at once. STAY CONNECTED: Ambient Sound Mode keeps you aware of your surroundings. EASY