Unverified90% confidenceDecision RuleTime unknown
室内使用遥控玩具选2.4GHz频段而非红外遥控，红外需直线对准且被家具遮挡即失效，2.4GHz穿墙操控距离可达15-30米
1
Sources
90%
Confidence
Long-term
Relevance
-
First Seen
Sources
Related Entities
Related Claims
Unverified2.4GHz频段遥控玩具支持多台同场景不串频，室内/多孩家庭优先选2.4GHz而非27MHz/40MHz老式频段（老频段两台同型号会互相干扰失控）81% similarUnverified采用2.4GHz RF传输，穿墙能力强、延迟低，适合需要在不同房间走动时仍能听到电视声音的用户73% similarUnverified5GHz频段投屏器抗干扰和延迟表现优于2.4GHz，但穿墙能力弱、有效距离约10米；开放会议室选5G，隔墙或大空间选双频自动切换款72% similarUnverified延迟与传输稳定性存在权衡：走2.4GHz频段稳定不易断但延迟偏高，5GHz低延迟高清晰但距离一远就掉线，家庭客厅同房间用5GHz，穿墙场景牺牲画质选2.4GHz更实用71% similarUnverified灵敏度每差3dB，达到相同响度所需功率翻倍。85dB以下的低灵敏度音箱（如经典小型监听箱）需要大功率功放伺候，86-90dB是较易驱动的舒适区间69% similar
Cite This Claim
Stable URI
https://kongchang.com/claim/306205API
curl https://kongchang.com/api/v1/knowledge/claims/306205MCP
get_claim(id=306205)