1 x Smart glasses. 1 x Instruction manual. Battery capacity: 130mA/3.7V. Speaker specification: ɸ∅ Size: φ15.5mm 3.7mm， Impedance 22 Ω Sensitivity: 113db ± 3dB.
ROCKBROS Cycling Bluetooth Glasses Touch Control Polarized Sunglasses Outdoor
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Tacx Flow T2240 Indoor Home Cycling Bluetooth Smart Turbo Trainer
