Pioneer S3 Wireless SE-S3BT Gray Bluetooth Headphones
Headphones, Box, Books and charging cable included

Opened to test only  (see pic)
amazing sound very good battery 25h 
Specifications:

Specifications & Accessories

  • Transmission method: Bluetooth® Version 5.0
  • Output: Bluetooth Standard Protocol Power Class 2
  • Transmission distance: Up to 10m
  • Multi-pairing: Max. 8 devices
  • Battery time: Max. 25 hours of continuous transmission (including audio playback)
  • Charging time: Approx. 2 hours
  • Supplied with USB Type-C charging cable, instruction booklet
  • SOUND QUALITY

    • Extra-large Φ 40 mm (1 9/16˝) drivers for deep bass
    • Clear, balanced, natural sound with powerful low-frequency response
    • Supports AAC codec for enhanced audio quality
    • Deep housing and earpad profile optimize acoustics and immersion
    • Frequency used: 2.4 GHz (2.4000 GHz–2.4835 GHz)
    • Type: Wireless on-ear stereo headphones
    • Driver: Φ 40 mm (1 9/16˝) dynamic driver
    • Frequency response: 10 Hz–22,000 Hz

    WIRELESS FUNCTIONS

    • Features the latest Bluetooth® 5.0 wireless technology
    • Button activates Voice Assistant/Call Reject (press and hold center); Play/ Pause and Call Accept/End (press center); Redial (double-press center); Volume Up/Down (press up/press down); and Track Skip Forward/Back (press and hold up/press and hold down)
    • Easy press-and-hold activation of smartphone voice assistants
    • Pair two devices with Multi-point Function, enabling call monitoring on smartphone and music playback from tablet simultaneously
    • Supports free Pioneer Notification App for Android™ which reads out notifications of text messages, emails, SMS, and more via headphones
Any questions pls ask