once you know your body measurements,consult the Size Chart on the product pages for actual item measurements to determine which size you should purchase.
THE MOVEMIC Frequency Response 20 Hz to 20 kHz Dynamic Range 100 dB, A-weighted Signal-to-Noise Ratio 68 dB SPL, A-weighted Equivalent Input Noise 26 dB SPL, A-weighted Maximum SPL 130 dB SPL Nominal Voltage 3.7 V DC Sensitivity (with MV-LAV) -37 dBFS @94 dB SPL (1 Pascal RMS) Bit Depth 24-bit Sampling Rate 48 kHz Gain Adjustment Range 0 to 60 dB Range Up to 100 ft (30m) line of sight Dimensions 1.81 in. x 0.87 in. x 0.59 in. (46 mm x 22 mm x 15 mm) Net Weight (no windscreen) 0.29 oz. (8.2g) Housing Black PC/ABS Thermoplastic Water Resistance IPX4 Battery Type Rechargeable Li-Ion Coin Cell Battery Runtime (Direct to Phone) Normal Power: Up to 11.3 hours High Power [1]: Up to 8.7 hours Antenna Sheet metal with copper-nickel-zinc alloy [1] High Power is applicable in the Americas and isn’t available in all regions. Supported Audio Formats Android PCM/WAV Up to 352 KHz AAC 256, 128, 96 iOS PCM/WAV Up to 352 KHz MP4 Audio Audio files: .mp4, .m4a, .m4p, .m4b AAC 256, 128, 96 ALAC Audio file: Apple Lossless