Techfire m31 wireless bluetooth neckband headphones

Techfire m31 wireless bluetooth neckband headphones Product Name: Techfire m31 wireless bluetooth neckband headphones Brand Name: Techfire Material: ABS Plastic Product Type: Neckband Type: Neckband Compatibility: All Smartphones Multipack: 1 Color: GREEN Mic: Yes Bluetooth Version: 5.1 Warranty_Period: 1 Year Brand Warranty Warranty_Type: Carry In Operating Voltage: 10 Volts Charging Type: Micro USB Battery Charge Time: 1 Hour Battery Backup: 9 Hours Frequency: 10 Hz Control Button: Yes Play Time: 20 Hours Dynamic Driver: 10 mm Transmission Distance: 10 Mtr Noise Cancelling: Yes Service Type: Replacement Sports Earphones: Yes Sweat Proof: Yes Water Resistant: Yes Techfire m31 wireless bluetooth neckband headphones Sizes: Free Size (Length Size: 10 cm) Country of Origin: India