Color: Black 【High-Fidelity High Sound Quality】 With support for high resolution and standard codecs, it transmits musical information in detail without losing the sound of each instrument or the singer's breath, from the live atmosphere. 【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 ■ 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