Bluetooth: Bluetooth v5.0; mini-Jack (3.5 mm); Number of channels: 1.0 (mono); Signal-to-noise ratio (dB): 70; Power (W): 5; Frequency range (Hz): 150 – 16000; Speaker synchronization: TWS; Codec support: Features: speakerphone; More features: carbine / clamping; Battery capacity (mAh): 1200