Lenovo Smart Wireless Earbuds PS-1551B
Very good condition. Earbud and case batteries all in good health. Comes with original earbuds, charging case, ear tips (new, sealed), accessories, box, and manual. All used parts have been cleaned with isopropyl alcohol.

Features
Audio
  • 11mm dynamic driver

  • 6x microphones with adaptive noise cancellation (ANC)

Design
  • Dimensions (W x D x H) - 28.4mm x 47.7mm x 56mm / 1.12" x 1.88" x 2.2"

  • Weight - Starting at 4.5g / 0.009lbs

  • Waterproofing - IPX4 water & sweat resistance

Earbuds
  • Battery capacity: 400 mA

  • Play time: Up to 7 hours

  • Talk time: Up to 4.5 hours

Connectivity

Bluetooth® 5.2

Compatibility
  • iOS

  • Android 8.0 and later



https://www.lenovo.com/ca/en/p/smart-devices/smart-home/smart-home-series/lenovo-smart-wireless-earbuds-/len104l0001#tech_specs