https://www.wearerewind.com/en-eu/products/lecteur-cassette-bluetooth-orange-serge Technical details AUDIO SPECIFICATIONS • Frequency response: 30 – 14,500 Hz ± 3 dB PERFORMANCE • Compatible with compact audio cassettes, Types I to IV PLAYBACK • 2-track stereo playback • Frequency response: 30 Hz – 14,500 Hz with Type I cassette • Signal-to-noise ratio: 50 dB • Distortion: 0.3% typ. • Wow & Flutter: 0.2% typ. • Headphone output power: 2 × 2 mW at 32 ohms • Bluetooth 5.1 (compatible with most wireless headphones and speakers) • Not compatible with in-ear headphones RECORDING • Stereo recording via RCA jack 3.5 mm input (compatible with Type I cassettes only) • Input level: 50 mVrms to 200 mVrms typ. • Frequency response: 30 Hz – 10,000 Hz with Type I cassette • Signal-to-noise ratio: 45 dB • Distortion: 1% typ. POWER SUPPLY • Built-in rechargeable Lithium-Ion battery • Nominal voltage: 3.7 V • Nominal capacity: 2000 mAh • Battery life: approximately 10 to 12 hours WEIGHT • Approximately 404 g DIMENSIONS • 140.8 × 88.8 × 33.5 mm