Consistent Wireless Stability: Advanced 2.4 GHz powerful wireless connection with distance up to 10-15m. Auto Power Saving: Auto 4-level power saving. It will be in sleep mode in 0.2s of inactivity. Anti-Slippery SideAnti-Slippery Side: Anti-slippery belt design provides with an enhanced grip to ergonomic and comfort fit. Read more
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