SafeID/Anytime is a button-less OTP token that displays one-time password on the screen at all times. It is time-based, OATH/TOTP compliant.
(no button, always on)

Technical Specification – SafeID/Mini

Security Algorithm: OATH/TOTP
Passcode Length: 6 Digits
Size: 46.50 x 24.90 x 9.50 (mm)
Weight: 14 grams
Battery Life: 4 – 6 Years
Waterproof: IP67
Tamper-Proof: Yes
Operating Temperature: 0°C – 50°C
Compliance: CE, FCC, Rohs