Nysa Sting Neckband Wireless Sports Earphone

Bluetooth Version: V4.2Stand-by Time: 200hTalk Time: 8hMusic Play Time: 6hCharging Time: 2hCharging Voltage: DC 5VFrequency Range: 2.402G-2.480GAmbient Temperature: -20/+60℃Profile Support: HSP、HFP、A2DP、AVRCPTransmission Distance: 10mBattery Capacity: 110mAh/3.7V

Driver Unit: 9mmSensitivity: 90dB ± 3dBImpedance: 16Ω ± 15%Frequency Response: 20-20000Hz

Please read suggests below in order to helping prolong theproduct lifespan and clearly understand the warrantyclauses.★ Keep the product dry, do not put it in humid circumstanceto avoid short circuit.★ Do not expose it to the sun or high heat. High heating willshort lifespan of electronic components, damage batteryand deform some plastic parts.★ Do not put it in cold circumstance to avoid damage toPCB board.★ Do not attempt to take apart the product, especiallynon-professionals.★ Do not fall, vibrate strongly,strike with hard objects, toavoid damage to inner electronic circuit.★ Do not use high chemical products,detergent to clean theitem.★ Do not scratch the surface with sharp items to avertdamaging the case and appearance.★ Do not make it charging 10 hours continuously for thesake of lifespan.If the product can not work properly, please send it toNYSA authorized maintenance agents. Our staff will helpto solve the problems for you.Statement: In order to improve product performancewe will upgrade products, the content may changewithout notice, please forgive! Thank you for your PURCHASE