Color: Black 【High-Fidelity High-Quality Sound】 With support for high resolution and standard codecs, this product transmits musical information in detail, from the sound of each instrument and the singer's breath to the excitement of a live performance, without losing any of the nuances. 【Excellent Compatibility】 Compatible with various Bluetooth-enabled devices such as iPhones, iWatches, Android smartphones, iPads, tablets, iPods, and PCs. ■ Case Size: 58 x 40 x 26 (mm) ■ Communication Method: Bluetooth 5.3 ■ Communication Distance: 10 m ■ Profiles: A2DP/AVRCP/HFP/HSP ■ Single Earphone Weight: Approximately 3g ■ Case Weight: Approximately 27g ■ Continuous Playback Time: Approximately 2 hours ■ Earphone Charging Time: Approximately 1 hour ■ Charging Case Charging Time: Approximately 1.5 hours ■ Charging Case Battery Capacity: 300mAh ■ Charging Voltage: 3.7V