Features: This XSLEEP Bone Conduction Speaker, featuring innovative timer function that seamlessly into deeply sleep without interruptions. This small size pillow speaker utilizes advanced bone conduction technology, delivering sound through vibrations in your pillow for a more intimate and comfortable experience. For traveler and business professional, this lightweight speaker effortlessly into your luggage, ensuring you can enjoy your favorite sounds on the go without added bulk. Perfectly for home or while traveling, enhances LED display provides essential information like battery , with intuitived controls for a customizable user experience. Equipped with Bluetooth-compatible-compatible 5.3 connection, the XSLEEP Speaker ensures quick setting and reliabled connection, making it essential addition to your auditory devices collection. Specifications: Model: XSLEEP Sound Box Size:about 15.5x3.50cm/6.1x1.38in Battery：400mAh Charging Time：about 3hours Component: ABS Color： As Pictures With Bone Conduct Technology luetooth-compatible version: 5.3 Bluetooth-compatible Connection ranging: About 10m/3.3ft Impedance: 8Ω Speaker frequency: 180hz-16000Hz Input current/voltages: 5V/250mA Working voltages: 3.7/4.2V Charging: Type C Charging time: About 2hours Music play time: About 8 hours Small Card support: Yes Package Includes: 1PC Wireless Pillow Speaker note: Please allow 0-1cm error due to manual measurement. please make sure do not mind before bid. Due to the differences between different monitors, the picture may not reflect the actual color.