【High-Quality Sound and Comfortable Fit】 These fully wireless stereo earphones offer excellent sound quality and a comfortable fit for extended use. 【Long Playback Time】 Enjoy up to 4.5 hours of music playback. 【Latest Bluetooth Technology】 Equipped with Bluetooth 5.0 for stable connectivity and low latency. - Model Number: Tama Electric Industry TBS31AK - Bluetooth Version: 5.0 - Music Playback Time: Up to 4.5 hours - Charging Time: Approximately 1.7 hours - Product Type: #Fully Wireless Stereo Earphones Please refer to the photos for more details.