Bluetooth Specification: 5.0 Material: Plastic, no rubber finish, with black oil(which can do light up logo) Bluetooth Profile: A2DP1.2, AVRCP, Handsfree profile. RF Range: 10m Frequency Response: 100Hz-20KHz Loudspeaker Output: 3W Signal-To-Noise:≥95dB Distortion:≤0.5% Playback Time: 5 hours Charging Time: 2 hours with standard package and accessory Function: with selfie, or can do TWS