•【Bone Conduction Technology】 Utilizes advanced bone conduction speakers for private listening without disturbing others, ideal for bedtime use •【Dual Sound Modes】 Features two audio modes optimized for music and audiobooks, enhancing the listening experience •【Large Built-in Storage】 Comes with 32GB of internal memory, preloaded with 200 songs and expandable for personal content •【Long Battery Life】 Offers up to 15 hours of playback time and 150 days of standby, perfect for extended use •【Versatile Functionality】 Equipped with a digital display, timer function, and Bluetooth 5.3 for seamless connectivity and control Specifications: •Material: Aluminum alloy + ABS •Dimensions: 103 x 28.5 x 14 mm •Internal Storage: 32GB TF Card •BT Version: 5.3 •Battery Capacity: 400mAh (Polymer lithium battery) •Charging Port: Type-C •Charging Time: 2 hours •Playback Time: 15 hours •Standby Time: 150 days •Frequency Response: 20Hz - 20KHz •Power Consumption: 2.8W •Input Voltage/Current: 5V/2A •Signal-to-Noise Ratio: ≥85dB Package included: •1 x Bone Conduction Sleep Speaker Built-in 32GB TF Card •1 x Data Charging Cable •1 x Chinese and English Instruction Manual