General Specifications. Driver size (mm) 6.8. ... Audio Specifications. Driver sensitivity at 1kHz/1mW (dB) 102. ... Dimensions. Charging Case Weight (oz) 2. ... Control and Connection Specifications. Bluetooth profiles A2DP V1.3, AVRCP V1.6, HFP V1.7. ... Battery. Charging time (hours from empty) 2. ... Features. Bluetooth Yes.